C#精髓 GridView72大绝技 学习gridview的朋友必看

快速预览:

  GridView无代码分页排序

  GridView选中,编辑,取消,删除

  GridView正反双向排序

  GridView和下拉菜单DropDownList结合

  GridView和CheckBox结合

  鼠标移到GridView某一行时改变该行的背景色方法一

  鼠标移到GridView某一行时改变该行的背景色方法二

  GridView实现删除时弹出确认对话框

  GridView实现自动编号

  GridView实现自定义时间货币等字符串格式

  GridView实现用“...”代替超长字符串

  GridView一般换行与强制换行

  GridView显示隐藏某一列

  GridView弹出新页面/弹出新窗口

  GridView固定表头(不用javascript只用CSS,2行代码,很好用)

  GridView合并表头多重表头无错完美版(以合并3列3行举例)

  GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

  GridView加入自动求和求平均值小计

  GridView数据导入Excel/Excel数据读入GridView

  

1.GridView无代码分页排序

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  1.AllowSorting设为True,aspx代码中是AllowSorting="True";

  2.默认1页10条,如果要修改每页条数,修改PageSize即可,在aspx代码中是PageSize="12"。

  3.默认的是单向排序的,右击GridView弹出“属性”,选择AllowSorting为True即可。

2.GridView选中,编辑,取消,删除:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

后台代码:

  你可以使用sqlhelper,本文没用。代码如下:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

  {

//清清月儿http://blog.csdn.net/21aspnet

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

//删除

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

  {

  string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcon = new SqlConnection(strCon);

  sqlcom = new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  bind();

  }

//更新

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 表 set 字段1='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

//取消

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

//绑定

  public void bind()

  {

  string sqlstr = "select * from 表";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "表");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "id" };//主键

  GridView1.DataBind();

  sqlcon.Close();

  }

  }

  前台主要代码:

                              ... ...

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"

  ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">

  <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

  <asp:BoundField DataField="员工性别" HeaderText="性别" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  3.GridView正反双向排序:

  效果图:点姓名各2次的排序,点其他也一样可以。

C#精髓 GridView72大绝技 学习gridview的朋友必看

C#精髓 GridView72大绝技 学习gridview的朋友必看

  后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Collections;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class Default3 : System.Web.UI.Page

  {

//清清月儿的博客http://blog.csdn.net/21aspnet

  SqlConnection sqlcon;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  ViewState["SortOrder"] = "身份证号码";

  ViewState["OrderDire"] = "ASC";

  bind();

  }

  }

  protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

  {

  string sPage = e.SortExpression;

  if (ViewState["SortOrder"].ToString() == sPage)

  {

  if (ViewState["OrderDire"].ToString() == "Desc")

  ViewState["OrderDire"] = "ASC";

  else

  ViewState["OrderDire"] = "Desc";

  }

  else

  {

  ViewState["SortOrder"] = e.SortExpression;

  }

  bind();

  }

public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  DataView view = myds.Tables["飞狐工作室"].DefaultView;

  string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];

  view.Sort = sort;

  GridView1.DataSource = view;

  GridView1.DataBind();

  sqlcon.Close();

  }

  }

前台主要代码:

  <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

  CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

  <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

4.GridView和下拉菜单DropDownList结合:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Collections;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class Default4 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  DropDownList ddl;

  if (!IsPostBack)

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")

  {

  ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

  ddl.SelectedIndex = 0;

  }

  if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")

  {

  ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");

  ddl.SelectedIndex = 1;

  }

  }

  sqlcon.Close();

  }

  }

  public SqlDataReader ddlbind()

  {

  string sqlstr = "select distinct 员工性别 from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  return sqlcom.ExecuteReader();

  }

前台主要代码:

  <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

  CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

  <asp:TemplateField HeaderText="员工性别">

  <ItemTemplate>

  <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别">

  </asp:DropDownList>

  </ItemTemplate>

  </asp:TemplateField>

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

5.GridView和CheckBox结合:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

后台代码:

using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page

  {

  //清清月儿http://blog.csdn.net/21aspnet

  SqlConnection sqlcon;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void CheckBox2_CheckedChanged(object sender, EventArgs e)

  {

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

  if (CheckBox2.Checked == true)

  {

  cbox.Checked = true;

  }

  else

  {

  cbox.Checked = false;

  }

  }

  }

  protected void Button2_Click(object sender, EventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  SqlCommand sqlcom;

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

  if (cbox.Checked == true)

  {

string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[i].Value + "'";

  sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  }

  }

  bind();

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  CheckBox2.Checked = false;

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");

  cbox.Checked = false;

  }

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "tb_Member");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  }

前台主要代码:

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"

  CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:TemplateField>

  <ItemTemplate>

  <asp:CheckBox ID="CheckBox1" runat="server" />

  </ItemTemplate>

  </asp:TemplateField>

  <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"

  Text="全选" />

  <asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />

  <asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  做法:

  双击GridView的OnRowDataBound事件;

  在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  int i;

  //执行循环,保证每条数据都可以更新

  for (i = 0; i < GridView1.Rows.Count; i++)

  {

  //首先判断是否是数据行

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  //当鼠标停留时更改背景色

  e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");

  //当鼠标移开时还原背景色

  e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");

  }

  }

}

前台代码:

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>实现鼠标划过改变GridView的行背景色 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body>

  <form id="form1" runat="server">

  <div>

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

  DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  </Columns>

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

  SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

  </div>

  </form>

  </body>

  </html>

7.鼠标移到GridView某一行时改变该行的背景色方法二:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

做法:和上面的一样就是代码不同

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  //int i;

  ////执行循环,保证每条数据都可以更新

  //for (i = 0; i < GridView1.Rows.Count; i++)

  //{

  //    //首先判断是否是数据行

  //    if (e.Row.RowType == DataControlRowType.DataRow)

  //    {

  //        //当鼠标停留时更改背景色

  //        e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'");

  //        //当鼠标移开时还原背景色

  //        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");

  //    }

  //}

  //如果是绑定数据行

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  //鼠标经过时,行背景色变

  e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");

  //鼠标移出时,行背景色变

  e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

  }

}

8.GridView实现删除时弹出确认对话框:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

实现方法:

  双击GridView的OnRowDataBound事件;

  在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  //如果是绑定数据行

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

  {

  ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");

  }

  }

}

9.GridView实现自动编号:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

实现方法:

  双击GridView的OnRowDataBound事件;

  在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  ////鼠标经过时,行背景色变

  //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");

  ////鼠标移出时,行背景色变

  //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

////当有编辑列时,避免出错,要加的RowState判断

  //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

  //{

  //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");

  //}

}

  if (e.Row.RowIndex != -1)

  {

  int id = e.Row.RowIndex + 1;

  e.Row.Cells[0].Text = id.ToString();

  }

}

注意这时最好把前台的第一列的表头该为“编号”,因为以前的第一列被“吃掉”了。

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

  <asp:BoundField DataField="员工性别" HeaderText="性别" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />

  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

10.GridView实现自定义时间货币等字符串格式:

效果图:

  图1-未格式化前

C#精髓 GridView72大绝技 学习gridview的朋友必看

  图2-格式化后

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方法:

  在asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate"

  DataFormatString="{0:M-dd-yyyy}"

  HeaderText="CreationDate" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击,安全起见而用的,所以,可以有以下两种方法解决

1、

<asp :GridView ID="GridView1" runat="server">

  <columns>

  <asp :BoundField DataField="CreationDate"

  DataFormatString="{0:M-dd-yyyy}"

  HtmlEncode="false"

  HeaderText="CreationDate" />

  </columns>

  </asp>

将htmlencode设置为false即可

另外的解决方法为,使用模版列

<asp :GridView ID="GridView3" runat="server" >

  <columns>

  <asp :TemplateField HeaderText="CreationDate" >

  <edititemtemplate>

  <asp :Label ID="Label1" runat="server"

  Text='<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>'>

  </asp>

  </edititemtemplate>

  <itemtemplate>

  <asp :Label ID="Label1" runat="server"

  Text='<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'>

  </asp>

  </itemtemplate>

  </asp>

  </columns>

  </asp>

前台代码:

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

  DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />

  <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />

  </Columns>

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

  SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式:

  {0:C}  货币;

  {0:D4}由0填充的4个字符宽的字段中显示整数;

  {0:000.0}四舍五入小数点保留第几位有效数字;

  {0:N2}小数点保留2位有效数字;{0:N2}%   小数点保留2位有效数字加百分号;

  {0:D}长日期;{0:d}短日期;{0:yy-MM-dd}   例如07-3-25;;{0:yyyy-MM-dd}  例如2007-3-25

11.GridView实现用“...”代替超长字符串:

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方法:数据绑定后过滤每一行即可

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv;

  string gIntro;

  if (GridView1.PageIndex == 0)

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名

  gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  else

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  }

  调用的方法:

  public string SubStr(string sString, int nLeng)

  {

  if (sString.Length <= nLeng)

  {

  return sString;

  }

  string sNewStr = sString.Substring(0, nLeng);

  sNewStr = sNewStr + "...";

  return sNewStr;

  }

  后台全部代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  ViewState["SortOrder"] = "身份证号码";

  ViewState["OrderDire"] = "ASC";

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

  {

  string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcon = new SqlConnection(strCon);

  sqlcom = new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv;

  string gIntro;

  if (GridView1.PageIndex == 0)

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  else

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  }

  sqlcon.Close();

  }

  public string SubStr(string sString, int nLeng)

  {

  if (sString.Length <= nLeng)

  {

  return sString;

  }

  string sNewStr = sString.Substring(0, nLeng);

  sNewStr = sNewStr + "...";

  return sNewStr;

  }

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  //如果是绑定数据行

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  ////鼠标经过时,行背景色变

  //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");

  ////鼠标移出时,行背景色变

  //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

  ////当有编辑列时,避免出错,要加的RowState判断

  //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

  //{

  //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");

  //}

  }

  if (e.Row.RowIndex != -1)

  {

  int id = e.Row.RowIndex + 1;

  e.Row.Cells[0].Text = id.ToString();

  }

  }

  }

11.GridView一般换行与强制换行:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  ItemStyle-Width="100" />

  gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。

  原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性:

  protected void Page_Load(object sender, EventArgs e)

  {

  //正常换行

  GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");

  //下面这行是自动换行

  GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");

  if (!IsPostBack)

  {

  bind();//调用数据绑定即可

  }

  }

  总之:善用CSS的word-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView。

12.GridView显示隐藏某一列:

  本方案为月儿独创,不同于网上其他方式,我觉得用一个CheckBox更人性化,这样可以隐藏不必要的列,让用户自己选择需要出现的列,在处理多列时这是一个很好的解决方案!

效果图:

  图1-开始

C#精髓 GridView72大绝技 学习gridview的朋友必看

  图2-点击显示的CheckBox后

C#精髓 GridView72大绝技 学习gridview的朋友必看

解决方案:

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

          GridView1.Columns[3].Visible = false;//一开始隐藏

  CheckBox1.Checked = false;//如果不这样后面的代码会把他True

  }

双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下:

  protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

  {

  GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

  Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());

  }

注意:CheckBox1的AutoPostBack要True

后台全部代码如下:

using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  ViewState["SortOrder"] = "身份证号码";

  ViewState["OrderDire"] = "ASC";

  bind();

                     }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

  {

  string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcon = new SqlConnection(strCon);

  sqlcom = new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  GridView1.Columns[3].Visible = false;

  CheckBox1.Checked = false;

  }

  protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

  {

  GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

  Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());

  }

  }

  前台代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body style="font-size=12px">

  <form id="form1" runat="server">

  <div>

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"

  OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" /></div>

  </form>

  </body>

  </html>

  13.GridView弹出新页面/弹出制定大小位置新窗口:

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  方案一:简单的方法,新窗口不固定大小

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >

  </asp:HyperLinkField>

                              <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。

  方案二:精确控制弹出窗口大小位置

  <asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"

  DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

  使用的是结合javascript的window.open方法,关于window.open的参数网上有很多帖子,本站也有许多参考

  弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx   即可!

  14.GridView固定表头(不用javascript只用CSS!,很好用)

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>

          <style>

  .Freezing

     {

     position:relative ;

  table-layout:fixed;

  top:expression(this.offsetParent.scrollTop);

  z-index: 10;

  }

  .Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}

  </style>

  </head>

  <body style="font-size=12px">

  <form id="form1" runat="server">

  <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  用法:CSS设如上的样式,HeaderStyle加CssClass="Freezing,套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

  15.GridView合并表头多重表头无错完美版(以合并3列3行举例)

  

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  

  后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 10 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  //这里就是解决方案

      protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

      {

  switch (e.Row.RowType)

  {

  case DataControlRowType.Header:

  //第一行表头

  TableCellCollection tcHeader = e.Row.Cells;

  tcHeader.Clear();

  tcHeader.Add(new TableHeaderCell());

  tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row

  tcHeader[0].Attributes.Add("bgcolor", "white");

  tcHeader[0].Text = "";

  tcHeader.Add(new TableHeaderCell());

  //tcHeader[1].Attributes.Add("bgcolor", "Red");

  tcHeader[1].Attributes.Add("colspan", "6"); //跨Column

  tcHeader[1].Text = "全部信息</th></tr><tr>";

  //第二行表头

  tcHeader.Add(new TableHeaderCell());

  tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");

  tcHeader[2].Text = "身份证号码";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");

  tcHeader[3].Attributes.Add("colspan", "2");

  tcHeader[3].Text = "基本信息";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");

  tcHeader[4].Text = "福利";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");

  tcHeader[5].Attributes.Add("colspan", "2");

  tcHeader[5].Text = "联系方式</th></tr><tr>";

  //第三行表头

  tcHeader.Add(new TableHeaderCell());

  tcHeader[6].Attributes.Add("bgcolor", "Khaki");

  tcHeader[6].Text = "身份证号码";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[7].Attributes.Add("bgcolor", "Khaki");

  tcHeader[7].Text = "姓名";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[8].Attributes.Add("bgcolor", "Khaki");

  tcHeader[8].Text = "出生日期";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[9].Attributes.Add("bgcolor", "Khaki");

  tcHeader[9].Text = "薪水";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[10].Attributes.Add("bgcolor", "Khaki");

  tcHeader[10].Text = "家庭住址";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[11].Attributes.Add("bgcolor", "Khaki");

  tcHeader[11].Text = "邮政编码";

  break;

  }

  }

  }

  前台:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body >

  <form id="form1" runat="server">

  <div  >

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  16.GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  

  解决方案:主要是绑定后过滤

   GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  string score = Convert.ToString(mydrv["起薪"]);

  if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

  {

  GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

  }

  }

          sqlcon.Close();

  全部后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 10 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  string score = Convert.ToString(mydrv["起薪"]);

  if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

  {

  GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

  }

  }

          sqlcon.Close();

  }

  }

  前台代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head id="Head1" runat="server">

  <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body >

  <form id="form1" runat="server">

  <div  >

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  17.GridView加入自动求和求平均值小计

  

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方案:

  private double sum = 0;//取指定列的数据和,你要根据具体情况对待可能你要处理的是int

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  if (e.Row.RowIndex >= 0)

  {

  sum += Convert.ToDouble(e.Row.Cells[6].Text);

  }

  else if (e.Row.RowType == DataControlRowType.Footer)

  {

  e.Row.Cells[5].Text = "总薪水为:";

  e.Row.Cells[6].Text = sum.ToString();

  e.Row.Cells[3].Text = "平均薪水为:";

  e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

  }

  }

  后台全部代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  private double sum = 0;//取指定列的数据和

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  if (e.Row.RowIndex >= 0)

  {

  sum += Convert.ToDouble(e.Row.Cells[6].Text);

  }

  else if (e.Row.RowType == DataControlRowType.Footer)

  {

  e.Row.Cells[5].Text = "总薪水为:";

  e.Row.Cells[6].Text = sum.ToString();

  e.Row.Cells[3].Text = "平均薪水为:";

  e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

  }

  }

  }

  前台:唯一的花头就是设置ShowFooter="True" ,否则默认表头为隐藏的!

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

   18.GridView数据导入Excel/Excel数据读入GridView

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方案:

  页面增加一个按钮,单击事件添加如下方法:

  protected void Button1_Click(object sender, EventArgs e)

  {

  Export("application/ms-excel", "学生成绩报表.xls");

  }

  private void Export(string FileType, string FileName)

  {

  Response.Charset = "GB2312";

  Response.ContentEncoding = System.Text.Encoding.UTF7;

  Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

  Response.ContentType = FileType;

  this.EnableViewState = false;

  StringWriter tw = new StringWriter();

  HtmlTextWriter hw = new HtmlTextWriter(tw);

  GridView1.RenderControl(hw);

  Response.Write(tw.ToString());

  Response.End();

  }

  //如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内

      public override void VerifyRenderingInServerForm(Control control)

  {

  }

  还有由于是文件操作所以要引入名称空间IO和Text

  后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  using System.IO;

  using System.Text;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  Export("application/ms-excel", "学生成绩报表.xls");

  }

  private void Export(string FileType, string FileName)

  {

  Response.Charset = "GB2312";

  Response.ContentEncoding = System.Text.Encoding.UTF7;

  Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

  Response.ContentType = FileType;

  this.EnableViewState = false;

  StringWriter tw = new StringWriter();

  HtmlTextWriter hw = new HtmlTextWriter(tw);

  GridView1.RenderControl(hw);

  Response.Write(tw.ToString());

  Response.End();

  }

  public override void VerifyRenderingInServerForm(Control control)

  {

  }

  }

  前台

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"

  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

  读取Excel数据的代码:这个很简单的

  private DataSet CreateDataSource()

  {

  string strCon;

  strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";

  OleDbConnection olecon = new OleDbConnection(strCon);

  OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);

  DataSet myds = new DataSet();

  myda.Fill(myds);

  return myds;

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  GridView1.DataSource = CreateDataSource();

  GridView1.DataBind();

  }

  由于时间关系,这个文章先到此。有时间再写,其实还有很多技巧,不过我觉得如果能融汇贯通应该可以举一反三

p;        </asp:GridView>

10.GridView实现自定义时间货币等字符串格式:

效果图:

  图1-未格式化前

C#精髓 GridView72大绝技 学习gridview的朋友必看

  图2-格式化后

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方法:

  在asp.net 2.0中,如果要在绑定列中显示比如日期格式等,如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate"

  DataFormatString="{0:M-dd-yyyy}"

  HeaderText="CreationDate" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击,安全起见而用的,所以,可以有以下两种方法解决

1、

<asp :GridView ID="GridView1" runat="server">

  <columns>

  <asp :BoundField DataField="CreationDate"

  DataFormatString="{0:M-dd-yyyy}"

  HtmlEncode="false"

  HeaderText="CreationDate" />

  </columns>

  </asp>

将htmlencode设置为false即可

另外的解决方法为,使用模版列

<asp :GridView ID="GridView3" runat="server" >

  <columns>

  <asp :TemplateField HeaderText="CreationDate" >

  <edititemtemplate>

  <asp :Label ID="Label1" runat="server"

  Text='<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>'>

  </asp>

  </edititemtemplate>

  <itemtemplate>

  <asp :Label ID="Label1" runat="server"

  Text='<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>'>

  </asp>

  </itemtemplate>

  </asp>

  </columns>

  </asp>

前台代码:

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"

  DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />

  <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />

  <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />

  </Columns>

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"

  SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式:

  {0:C}  货币;

  {0:D4}由0填充的4个字符宽的字段中显示整数;

  {0:000.0}四舍五入小数点保留第几位有效数字;

  {0:N2}小数点保留2位有效数字;{0:N2}%   小数点保留2位有效数字加百分号;

  {0:D}长日期;{0:d}短日期;{0:yy-MM-dd}   例如07-3-25;;{0:yyyy-MM-dd}  例如2007-3-25

11.GridView实现用“...”代替超长字符串:

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方法:数据绑定后过滤每一行即可

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv;

  string gIntro;

  if (GridView1.PageIndex == 0)

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名

  gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  else

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  }

  调用的方法:

  public string SubStr(string sString, int nLeng)

  {

  if (sString.Length <= nLeng)

  {

  return sString;

  }

  string sNewStr = sString.Substring(0, nLeng);

  sNewStr = sNewStr + "...";

  return sNewStr;

  }

  后台全部代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  ViewState["SortOrder"] = "身份证号码";

  ViewState["OrderDire"] = "ASC";

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

  {

  string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcon = new SqlConnection(strCon);

  sqlcom = new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv;

  string gIntro;

  if (GridView1.PageIndex == 0)

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  else

  {

  mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];

  gIntro = Convert.ToString(mydrv["家庭住址"]);

  GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

  }

  }

  sqlcon.Close();

  }

  public string SubStr(string sString, int nLeng)

  {

  if (sString.Length <= nLeng)

  {

  return sString;

  }

  string sNewStr = sString.Substring(0, nLeng);

  sNewStr = sNewStr + "...";

  return sNewStr;

  }

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  //如果是绑定数据行

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

  ////鼠标经过时,行背景色变

  //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");

  ////鼠标移出时,行背景色变

  //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

  ////当有编辑列时,避免出错,要加的RowState判断

  //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)

  //{

  //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除:\"" + e.Row.Cells[1].Text + "\"吗?')");

  //}

  }

  if (e.Row.RowIndex != -1)

  {

  int id = e.Row.RowIndex + 1;

  e.Row.Cells[0].Text = id.ToString();

  }

  }

  }

11.GridView一般换行与强制换行:

效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  ItemStyle-Width="100" />

  gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。

  原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性:

  protected void Page_Load(object sender, EventArgs e)

  {

  //正常换行

  GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");

  //下面这行是自动换行

  GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");

  if (!IsPostBack)

  {

  bind();//调用数据绑定即可

  }

  }

  总之:善用CSS的word-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView。

12.GridView显示隐藏某一列:

  本方案为月儿独创,不同于网上其他方式,我觉得用一个CheckBox更人性化,这样可以隐藏不必要的列,让用户自己选择需要出现的列,在处理多列时这是一个很好的解决方案!

效果图:

  图1-开始

C#精髓 GridView72大绝技 学习gridview的朋友必看

  图2-点击显示的CheckBox后

C#精髓 GridView72大绝技 学习gridview的朋友必看

解决方案:

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

          GridView1.Columns[3].Visible = false;//一开始隐藏

  CheckBox1.Checked = false;//如果不这样后面的代码会把他True

  }

双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下:

  protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

  {

  GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

  Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());

  }

注意:CheckBox1的AutoPostBack要True

后台全部代码如下:

using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  ViewState["SortOrder"] = "身份证号码";

  ViewState["OrderDire"] = "ASC";

  bind();

                     }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

  {

  string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcon = new SqlConnection(strCon);

  sqlcom = new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  GridView1.Columns[3].Visible = false;

  CheckBox1.Checked = false;

  }

  protected void CheckBox1_CheckedChanged(object sender, EventArgs e)

  {

  GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;

  Response.Write("GridView1的第4列现在的显示隐藏状态是:"+GridView1.Columns[3].Visible.ToString());

  }

  }

  前台代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body style="font-size=12px">

  <form id="form1" runat="server">

  <div>

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="用户姓名" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"

  OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" /></div>

  </form>

  </body>

  </html>

  13.GridView弹出新页面/弹出制定大小位置新窗口:

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  方案一:简单的方法,新窗口不固定大小

  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >

  </asp:HyperLinkField>

                              <asp:CommandField HeaderText="选择" ShowSelectButton="True" />

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。

  方案二:精确控制弹出窗口大小位置

  <asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"

  DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

  使用的是结合javascript的window.open方法,关于window.open的参数网上有很多帖子,本站也有许多参考

  弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx   即可!

  14.GridView固定表头(不用javascript只用CSS!,很好用)

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>

          <style>

  .Freezing

     {

     position:relative ;

  table-layout:fixed;

  top:expression(this.offsetParent.scrollTop);

  z-index: 10;

  }

  .Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}

  </style>

  </head>

  <body style="font-size=12px">

  <form id="form1" runat="server">

  <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  用法:CSS设如上的样式,HeaderStyle加CssClass="Freezing,套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

  15.GridView合并表头多重表头无错完美版(以合并3列3行举例)

  

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  

  后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class _Default : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom=new SqlCommand(sqlstr,sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 10 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  //这里就是解决方案

      protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)

      {

  switch (e.Row.RowType)

  {

  case DataControlRowType.Header:

  //第一行表头

  TableCellCollection tcHeader = e.Row.Cells;

  tcHeader.Clear();

  tcHeader.Add(new TableHeaderCell());

  tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row

  tcHeader[0].Attributes.Add("bgcolor", "white");

  tcHeader[0].Text = "";

  tcHeader.Add(new TableHeaderCell());

  //tcHeader[1].Attributes.Add("bgcolor", "Red");

  tcHeader[1].Attributes.Add("colspan", "6"); //跨Column

  tcHeader[1].Text = "全部信息</th></tr><tr>";

  //第二行表头

  tcHeader.Add(new TableHeaderCell());

  tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");

  tcHeader[2].Text = "身份证号码";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");

  tcHeader[3].Attributes.Add("colspan", "2");

  tcHeader[3].Text = "基本信息";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");

  tcHeader[4].Text = "福利";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");

  tcHeader[5].Attributes.Add("colspan", "2");

  tcHeader[5].Text = "联系方式</th></tr><tr>";

  //第三行表头

  tcHeader.Add(new TableHeaderCell());

  tcHeader[6].Attributes.Add("bgcolor", "Khaki");

  tcHeader[6].Text = "身份证号码";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[7].Attributes.Add("bgcolor", "Khaki");

  tcHeader[7].Text = "姓名";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[8].Attributes.Add("bgcolor", "Khaki");

  tcHeader[8].Text = "出生日期";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[9].Attributes.Add("bgcolor", "Khaki");

  tcHeader[9].Text = "薪水";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[10].Attributes.Add("bgcolor", "Khaki");

  tcHeader[10].Text = "家庭住址";

  tcHeader.Add(new TableHeaderCell());

  tcHeader[11].Attributes.Add("bgcolor", "Khaki");

  tcHeader[11].Text = "邮政编码";

  break;

  }

  }

  }

  前台:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head runat="server">

  <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body >

  <form id="form1" runat="server">

  <div  >

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  16.GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  

  解决方案:主要是绑定后过滤

   GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  string score = Convert.ToString(mydrv["起薪"]);

  if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

  {

  GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

  }

  }

          sqlcon.Close();

  全部后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 10 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  for (int i = 0; i <= GridView1.Rows.Count - 1; i++)

  {

  DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];

  string score = Convert.ToString(mydrv["起薪"]);

  if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

  {

  GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;

  }

  }

          sqlcon.Close();

  }

  }

  前台代码:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" >

  <head id="Head1" runat="server">

  <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>

  </head>

  <body >

  <form id="form1" runat="server">

  <div  >

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  </div>

  </form>

  </body>

  </html>

  17.GridView加入自动求和求平均值小计

  

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方案:

  private double sum = 0;//取指定列的数据和,你要根据具体情况对待可能你要处理的是int

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  if (e.Row.RowIndex >= 0)

  {

  sum += Convert.ToDouble(e.Row.Cells[6].Text);

  }

  else if (e.Row.RowType == DataControlRowType.Footer)

  {

  e.Row.Cells[5].Text = "总薪水为:";

  e.Row.Cells[6].Text = sum.ToString();

  e.Row.Cells[3].Text = "平均薪水为:";

  e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

  }

  }

  后台全部代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

  {

  GridView1.EditIndex = e.NewEditIndex;

  bind();

  }

  protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

  {

  sqlcon = new SqlConnection(strCon);

  string sqlstr = "update 飞狐工作室 set 姓名='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"

  + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"

  + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";

  sqlcom = new SqlCommand(sqlstr, sqlcon);

  sqlcon.Open();

  sqlcom.ExecuteNonQuery();

  sqlcon.Close();

  GridView1.EditIndex = -1;

  bind();

  }

  protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

  {

  GridView1.EditIndex = -1;

  bind();

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  private double sum = 0;//取指定列的数据和

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  {

  if (e.Row.RowIndex >= 0)

  {

  sum += Convert.ToDouble(e.Row.Cells[6].Text);

  }

  else if (e.Row.RowType == DataControlRowType.Footer)

  {

  e.Row.Cells[5].Text = "总薪水为:";

  e.Row.Cells[6].Text = sum.ToString();

  e.Row.Cells[3].Text = "平均薪水为:";

  e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();

  }

  }

  }

  前台:唯一的花头就是设置ShowFooter="True" ,否则默认表头为隐藏的!

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"

  OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

   18.GridView数据导入Excel/Excel数据读入GridView

  效果图:

C#精髓 GridView72大绝技 学习gridview的朋友必看

  解决方案:

  页面增加一个按钮,单击事件添加如下方法:

  protected void Button1_Click(object sender, EventArgs e)

  {

  Export("application/ms-excel", "学生成绩报表.xls");

  }

  private void Export(string FileType, string FileName)

  {

  Response.Charset = "GB2312";

  Response.ContentEncoding = System.Text.Encoding.UTF7;

  Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

  Response.ContentType = FileType;

  this.EnableViewState = false;

  StringWriter tw = new StringWriter();

  HtmlTextWriter hw = new HtmlTextWriter(tw);

  GridView1.RenderControl(hw);

  Response.Write(tw.ToString());

  Response.End();

  }

  //如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内

      public override void VerifyRenderingInServerForm(Control control)

  {

  }

  还有由于是文件操作所以要引入名称空间IO和Text

  后台代码:

  using System;

  using System.Data;

  using System.Configuration;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Web.UI.HtmlControls;

  using System.Data.SqlClient;

  using System.Drawing;

  using System.IO;

  using System.Text;

  public partial class Default7 : System.Web.UI.Page

  {

  SqlConnection sqlcon;

  SqlCommand sqlcom;

  string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  bind();

  }

  }

  public void bind()

  {

  string sqlstr = "select top 5 * from 飞狐工作室";

  sqlcon = new SqlConnection(strCon);

  SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

  DataSet myds = new DataSet();

  sqlcon.Open();

  myda.Fill(myds, "飞狐工作室");

  GridView1.DataSource = myds;

  GridView1.DataKeyNames = new string[] { "身份证号码" };

  GridView1.DataBind();

  sqlcon.Close();

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  Export("application/ms-excel", "学生成绩报表.xls");

  }

  private void Export(string FileType, string FileName)

  {

  Response.Charset = "GB2312";

  Response.ContentEncoding = System.Text.Encoding.UTF7;

  Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

  Response.ContentType = FileType;

  this.EnableViewState = false;

  StringWriter tw = new StringWriter();

  HtmlTextWriter hw = new HtmlTextWriter(tw);

  GridView1.RenderControl(hw);

  Response.Write(tw.ToString());

  Response.End();

  }

  public override void VerifyRenderingInServerForm(Control control)

  {

  }

  }

  前台

  <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"

  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >

  <FooterStyle BackColor="White" ForeColor="#000066" />

  <Columns>

  <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />

  <asp:BoundField DataField="姓名" HeaderText="姓名"  />

  <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />

  <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />

  <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />

  <asp:BoundField DataField="起薪" HeaderText="起薪"  />

  </Columns>

  <RowStyle ForeColor="#000066" />

  <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />

  <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>

  <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />

  </asp:GridView>

  <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

  读取Excel数据的代码:这个很简单的

  private DataSet CreateDataSource()

  {

  string strCon;

  strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";

  OleDbConnection olecon = new OleDbConnection(strCon);

  OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);

  DataSet myds = new DataSet();

  myda.Fill(myds);

  return myds;

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  GridView1.DataSource = CreateDataSource();

  GridView1.DataBind();

  }

  由于时间关系,这个文章先到此。有时间再写,其实还有很多技巧,不过我觉得如果能融汇贯通应该可以举一反三