asp.net读取excel中的数据并绑定在gridview

  前台label,DropDownList,gridview控件

  aspx.cs核心代码:

  

复制代码 代码如下:

  using System.Data.OleDb;//需要引入命名

  public void Excel_Click(object sender, EventArgs e)

  {

  if (this.AttachmentFile.Value == "" && this.Label1.Text == "" && DropDownList2.SelectedValue == "")

  {

  Response.Write("<script>window.alert('请选择要导入的文件')</script>");

  }

  if (this.AttachmentFile.Value != "" && this.DropDownList2.SelectedValue == "")

  {

  HttpFileCollection files = HttpContext.Current.Request.Files;

  HttpPostedFile postedFile = files[0];

  fileName = System.IO.Path.GetFileName(postedFile.FileName);

  if (fileName != "")

  {

  postedFile.SaveAs("\\\\localhost\\文件夹\\" + fileName);

  }

  string strConn;

  strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + "\\\\localhost\\文件夹\\" + fileName + ";Extended Properties=Excel 8.0;";//this.AttachmentFile.Value.ToString()

  OleDbConnection conn = new OleDbConnection(strConn);

  conn.Open();

  DataTable sheetNames = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });

  foreach (DataRow dr in sheetNames.Rows)

  {

  DropDownList2.Items.Add(dr[2].ToString());

  }

  this.Label1.Text = "\\\\localhost\\文件夹\\" + fileName;//this.AttachmentFile.Value.ToString();

  conn.Close();

  }

  if (this.Label1.Text.ToString() != "" && this.DropDownList2.SelectedValue != "")// && this.DropDownList1.SelectedValue.ToString() != "全部"

  {

  //绑定到gridview

  GridView1.DataSource = createDataSource(DropDownList2.SelectedValue.ToString(), this.Label1.Text.ToString());//, this.DropDownList1.SelectedValue.ToString()

  GridView1.DataBind();

  }

  }

  //以Excel为数据源获取数据集

  private DataSet createDataSource(string select, string lable)

  {

  string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + lable + ";Extended Properties=Excel 8.0;";

  string strsql = "select 登记号码,姓名,日期,签到时间,签退时间,部门 from [" + select + "] order by 部门,日期,姓名";//excel表格的字段

  OleDbConnection conn = new OleDbConnection(strCon);

  OleDbDataAdapter da = new OleDbDataAdapter(strsql, conn);

  try

  {

  conn.Open();

  DataSet ds = new DataSet();

  da.Fill(ds);

  conn.Close();

  return ds;

  }

  catch (Exception e)

  {

  Response.Write("<script>window.alert('没有数据,或者" + e.Message + "')</script>");

  return null;

  }

  }

  以上是插入07以前版本excel

  如果07版本以后只需要做小小修改

  

复制代码 代码如下:

  string strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + lable + ";Extended Properties=Excel 12.0;";