动态调用Excel，从而避免因为版本不同而使用程序无法编辑或调试

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 System.Reflection;

namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
string filePath=string.Empty;
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.Filter = "Excel 文件(*.xls)|*.xls|Excel 文件(*.xlsx)|*.xlsx|所有文件(*.*)|*.*";
if (saveFile.ShowDialog()==DialogResult.OK)
{
filePath = saveFile.FileName;
}
if (string.IsNullOrEmpty(filePath))
{
return;
}

object objApp;
object objBook;
object objBooks;
object objSheets;
object objSheet;
object objRange;
object objCells;
object[] Parameters;

try
{
// 获取Excel类型并建立其实例
Type objExcelType = Type.GetTypeFromProgID("Excel.Application");
if (objExcelType == null)
{
return;
}
objApp = Activator.CreateInstance(objExcelType);
if (objApp == null)
{
return;
}
//获取Workbook集
objBooks = objApp.GetType().InvokeMember("Workbooks", BindingFlags.GetProperty, null, objApp, null);

//添加一个新的Workbook
objBook = objBooks.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, objBooks, null);

//获取Sheet集
objSheets = objBook.GetType().InvokeMember("Worksheets", BindingFlags.GetProperty, null, objBook, null);

//获取第一个Sheet对象
Parameters = new Object[1] { 1 };
objSheet = objSheets.GetType().InvokeMember("Item", BindingFlags.GetProperty, null, objSheets, Parameters);

try
{

//获取操作范围
for (int i = 1; i < 100; i++)
{
Parameters = new Object[2] { 1, i };
objCells = objSheet.GetType().InvokeMember("Cells", BindingFlags.GetProperty, null, objSheet, Parameters);
//向指定单元格填写内容值
Parameters = new Object[1] { "Hello, World!" };
objCells.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, objCells, Parameters);
}

}
catch (Exception operException)
{
MessageBox.Show(operException.Message);
}
finally
{
//不提示保存
Parameters = new Object[1] { false };
objApp.GetType().InvokeMember("DisplayAlerts", BindingFlags.SetProperty, null, objApp, Parameters);

//保存文件并退出
Parameters = new Object[1] { filePath };
objBook.GetType().InvokeMember("SaveAs", BindingFlags.InvokeMethod, null, objBook, Parameters);
objApp.GetType().InvokeMember("Quit", BindingFlags.InvokeMethod, null, objApp, null);
GC.Collect();
MessageBox.Show("Save successfully!");
}
}
catch (Exception theException)
{
String errorMessage;
errorMessage = "Error: ";
errorMessage = String.Concat(errorMessage, theException.Message);
errorMessage = String.Concat(errorMessage, " Line: ");
errorMessage = String.Concat(errorMessage, theException.Source);

MessageBox.Show(errorMessage, "Error");
}
}
}
}