通过剪贴板实现将DataGridView中的数据导出到Excel

  将DataGridView中的数据导出到Excel中有许多方法,常见的方法是使用Office COM组件将DataGridView中的数据循环复制到Excel Cell对象中,然后再保存整个Excel Workbook。但是如果数据量太大,例如上万行数据或者有多个Excel Sheet需要同时导出,效率会比较低。可以尝试使用异步操作或多线程的方式来解决UI死锁的问题。

  这里介绍一种直接通过Windows剪贴板将数据从DataGridView导出到Excel的方法。代码如下:

  

复制代码 代码如下:

  using System;

  using System.Collections.Generic;

  using System.ComponentModel;

  using System.Data;

  using System.Drawing;

  using System.Linq;

  using System.Text;

  using System.Windows.Forms;

  using Excel = Microsoft.Office.Interop.Excel;

  using System.Reflection;

  using Microsoft.Office.Interop.Excel;

  namespace WindowsFormsApplication1

  {

  public partial class Form1 : Form

  {

  public Form1()

  {

  InitializeComponent();

  this.saveFileDialog1.Filter = "Excel Workbook|*.xlsx|Excel Macro-Enabled Workbook|*.xlsm|Excel 97-2003 Workbook|*.xls";

  this.saveFileDialog1.FileName = "demo.xlsx";

  LoadData();

  }

  private void LoadData()

  {

  BindingList<Car> cars = new BindingList<Car>();

  cars.Add(new Car("Ford", "Mustang", 1967));

  cars.Add(new Car("Shelby AC", "Cobra", 1965));

  cars.Add(new Car("Chevrolet", "Corvette Sting Ray", 1965));

  this.dataGridView1.DataSource = cars;

  }

  private void toolStripButton1_Click(object sender, EventArgs e)

  {

  string filePath = string.Empty;

  if (this.saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)

  {

  filePath = this.saveFileDialog1.FileName;

  }

  else

  {

  return;

  }

  this.dataGridView1.SelectAll();

  Clipboard.SetDataObject(this.dataGridView1.GetClipboardContent());

  Excel.Application objExcel = null;

  Excel.Workbook objWorkbook = null;

  Excel.Worksheet objsheet = null;

  try

  {

  objExcel = new Microsoft.Office.Interop.Excel.Application();

  objWorkbook = objExcel.Workbooks.Add(Missing.Value);

  objsheet = (Excel.Worksheet)objWorkbook.ActiveSheet;

  objExcel.Visible = false;

  objExcel.get_Range("A1", System.Type.Missing).PasteSpecial(XlPasteType.xlPasteAll, XlPasteSpecialOperation.xlPasteSpecialOperationNone, Type.Missing, Type.Missing);

  objsheet.Name = "Demo";

  //Set table properties

  objExcel.Cells.EntireColumn.AutoFit();//auto column width

  objExcel.Cells.VerticalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;

  objExcel.Cells.HorizontalAlignment = Microsoft.Office.Interop.Excel.Constants.xlLeft;

  objExcel.ErrorCheckingOptions.BackgroundChecking = false;

  //save file

  objWorkbook.SaveAs(filePath, Missing.Value, Missing.Value, Missing.Value, Missing.Value,

  Missing.Value, Excel.XlSaveAsAccessMode.xlShared, Missing.Value, Missing.Value, Missing.Value,

  Missing.Value, Missing.Value);

  }

  catch (Exception error)

  {

  MessageBox.Show(error.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

  return;

  }

  finally

  {

  //Dispose the Excel related objects

  if (objWorkbook != null)

  {

  objWorkbook.Close(Missing.Value, Missing.Value, Missing.Value);

  }

  if (objExcel.Workbooks != null)

  {

  objExcel.Workbooks.Close();

  }

  if (objExcel != null)

  {

  objExcel.Quit();

  }

  objsheet = null;

  objWorkbook = null;

  objExcel = null;

  GC.Collect(); // force final cleanup.

  }

  }

  }

  public class Car

  {

  private string _make;

  private string _model;

  private int _year;

  public Car(string make, string model, int year)

  {

  _make = make;

  _model = model;

  _year = year;

  }

  public string Make

  {

  get { return _make; }

  set { _make = value; }

  }

  public string Model

  {

  get { return _model; }

  set { _model = value; }

  }

  public int Year

  {

  get { return _year; }

  set { _year = value; }

  }

  }

  }

  导出数据到Excel的操作在事件toolStripButton1_Click中,代码的第49行和50行是将DataGridView当前选中的行复制到系统剪贴板中,62行将剪贴板中的内容粘贴到Excel默认Sheet的A1单元格中。Excel会自动格式化将粘贴的内容,如下图。

通过剪贴板实现将DataGridView中的数据导出到Excel

  使用剪贴板导出数据过程比较简单,省去了对Excel对象的遍历和操作,缺点是无法对导出的数据进行格式和样式的设置。如果需要对导出的数据进行样式设置,可以尝试使用OpenXML的方式来修改Excel文件的样式,