关于导入导出的问题
如何用asp.net做一个导出导入access，能否给一个例子！

------解决方案--------------------
封装好的导入导出EXCEL类，直接调用就行
C# code
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.OleDb;
using System.Reflection;
using Excel;

namespace ImportExportToExcel
{
public class ImportExportToExcel
{
private string strConn ;

private System.Windows.Forms.OpenFileDialog openFileDlg=new System.Windows.Forms.OpenFileDialog();
private System.Windows.Forms.SaveFileDialog saveFileDlg=new System.Windows.Forms.SaveFileDialog();

public ImportExportToExcel()
{
//
// TODO: 在此处添加构造函数逻辑
//
this.openFileDlg.DefaultExt = "xls";
this.openFileDlg.Filter = "Excel文件 (*.xls)|*.xls";

this.saveFileDlg.DefaultExt="xls";
this.saveFileDlg.Filter= "Excel文件 (*.xls)|*.xls";

}


#region 从Excel文件导入到DataSet
// /// <summary>
// /// 从Excel导入文件
// /// </summary>
// /// <param name="strExcelFileName">Excel文件名</param>
// /// <returns>返回DataSet</returns>
// public DataSet ImportFromExcel(string strExcelFileName)
// {
// return doImport(strExcelFileName);
// }
/**//// <summary>
/// 从选择的Excel文件导入
/// </summary>
/// <returns>DataSet</returns>
public DataSet ImportFromExcel()
{
DataSet ds=new DataSet();
if (openFileDlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) 
ds=doImport(openFileDlg.FileName);
return ds;
}
/**//// <summary>
/// 从指定的Excel文件导入
/// </summary>
/// <param name="strFileName">Excel文件名</param>
/// <returns></returns>
public DataSet ImportFromExcel(string strFileName)
{
DataSet ds=new DataSet();
ds=doImport(strFileName);
return ds;
}
/**//// <summary>
/// 执行导入
/// </summary>
/// <param name="strFileName">文件名</param>
/// <returns>DataSet</returns>
private DataSet doImport(string strFileName)
{
if (strFileName=="") return null;

strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + strFileName + ";" +
"Extended Properties=Excel 8.0;";
OleDbDataAdapter ExcelDA = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strConn);

DataSet ExcelDs = new DataSet();
try
{
ExcelDA.Fill(ExcelDs, "ExcelInfo");

}
catch(Exception err)
{
System.Console.WriteLine( err.ToString() );
}
return ExcelDs;



}
#endregion

#region 从DataSet到出到Excel
/**//// <summary>
/// 导出指定的Excel文件
/// </summary>
/// <param name="ds">要导出的DataSet</param>
/// <param name="strExcelFileName">要导出的Excel文件名</p