DataGrid 完全攻略之二（把数据导出到Excel）

<% @ Page language="c#" Codebehind="ExportExcel.aspx.cs" AutoEventWireup="false" Inherits="MsDataGrid.ExportExcel"  %>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"  >
< HTML >
     < HEAD >
         < title > DataGrid使用举例 </ title >
         < meta  name ="GENERATOR"  Content ="Microsoft Visual Studio 7.0" >
         < meta  name ="CODE_LANGUAGE"  Content ="C#" >
         < meta  name ="vs_defaultClientScript"  content ="JavaScript" >
         < meta  name ="vs_targetSchema"  content ="http://schemas.microsoft.com/intellisense/ie5" >
     </ HEAD >
     < body  MS_POSITIONING ="GridLayout" >
         < form  id ="Form1"  method ="post"  runat ="server" >
             < FONT  face ="宋体" >
                 < asp:DataGrid  id ="dgShow"  style ="Z-INDEX: 100; LEFT: 26px; POSITION: absolute; TOP: 89px"  runat ="server"  Width ="842px"  Height ="172px"  BorderColor ="Tan"  BorderWidth ="1px"  BackColor ="LightGoldenrodYellow"  CellPadding ="2"  GridLines ="None"  ForeColor ="Black"  PageSize ="1"  AutoGenerateColumns ="False"  ShowFooter ="True"  AllowPaging ="True" >
                     < SelectedItemStyle  ForeColor ="GhostWhite"  BackColor ="DarkSlateBlue" ></ SelectedItemStyle >
                     < AlternatingItemStyle  BackColor ="PaleGoldenrod" ></ AlternatingItemStyle >
                     < HeaderStyle  Font-Bold ="True"  BackColor ="Tan" ></ HeaderStyle >
                     < FooterStyle  BackColor ="Tan" ></ FooterStyle >
                     < Columns >
                         < asp:BoundColumn  DataField ="StudentID"  ReadOnly ="True"  HeaderText ="学生ID" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="StudentName"  HeaderText ="学生姓名" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="StudentPass"  HeaderText ="密码" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="Sex"  HeaderText ="性别" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="Birthday"  HeaderText ="生日"  DataFormatString ="{0:yyyy-M-d}" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="Email"  HeaderText ="邮件地址" ></ asp:BoundColumn >
                         < asp:BoundColumn  DataField ="Score"  HeaderText ="分数" ></ asp:BoundColumn >
                         < asp:ButtonColumn  Text ="选择"  CommandName ="Select" ></ asp:ButtonColumn >
                     </ Columns >
                     < PagerStyle  HorizontalAlign ="Center"  ForeColor ="DarkSlateBlue"  BackColor ="PaleGoldenrod"  Mode ="NumericPages" ></ PagerStyle >
                 </ asp:DataGrid >
                 < asp:Button  id ="btnMIME"  style ="Z-INDEX: 102; LEFT: 230px; POSITION: absolute; TOP: 44px"  runat ="server"  Text ="导出" ></ asp:Button ></ FONT >
         </ form >
     </ body >
</ HTML >

using  System;
using  System.Collections;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Web;
using  System.Web.SessionState;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.HtmlControls;
using  System.Data.SqlClient;
namespace  MsDataGrid
{
    /// <summary>
    /// WebForm1 的摘要说明。
    /// </summary>
    public class ExportExcel : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.Button btnMIME;
        protected System.Web.UI.WebControls.DataGrid dgShow;
    
        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            if(!IsPostBack)
                BindData();
            
            
        }
        private void BindData()
        {
            string strCon = System.Configuration.ConfigurationSettings.AppSettings["DSN"];
            SqlConnection con = new SqlConnection(strCon);
            SqlDataAdapter da = new SqlDataAdapter("Select * from tbStudentinfo",con);
            DataSet ds = new DataSet();
            da.Fill(ds,"studentinfo");
            dgShow.DataSource = ds.Tables["studentinfo"].DefaultView;
            dgShow.DataBind();
            
        }
        Web Form Designer generated code

        private void btnMIME_Click(object sender, System.EventArgs e)
        {
            Response.ContentType = "application/vnd.ms-excel";
            Response.Charset = "";
            this.EnableViewState = false;
            System.IO.StringWriter sw = new System.IO.StringWriter();
            System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(sw);
            int nCur = dgShow.CurrentPageIndex;
            int nSize = dgShow.PageSize;
            
            dgShow.AllowPaging = false;
            BindData();
                
            dgShow.Columns[7].Visible =false;
            dgShow.RenderControl(hw);
            dgShow.Columns[7].Visible =true;
            
            //以下恢复分页
            dgShow.AllowPaging = true;
            dgShow.CurrentPageIndex = nCur;
            dgShow.PageSize = nSize;
            BindData();
            Response.Write(sw.ToString());
            Response.End();
        }
    }
}

     Response.Clear(); 
     Response.Buffer= true;
     Response.Charset="GB2312";
     Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
     Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
     //设置输出流为简体中文
     Response.ContentType = "application/ms-excel";
     //设置输出文件类型为excel文件。
     this.EnableViewState = false;
     System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN",true);
     System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
     System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
     DataGrid1.RenderControl(oHtmlTextWriter);
     Response.Write(oStringWriter.ToString());
     Response.End();

}
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
        // 如果设置为 GetEncoding("GB2312");导出的文件将会出现乱码！！！
        Response.ContentEncoding = System.Text.Encoding.UTF7;
        Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。 
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
        this.GridView1.RenderControl(oHtmlTextWriter); 
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();

本文转自高海东博客园博客，原文链接：http://www.cnblogs.com/ghd258/archive/2005/10/12/253181.html，如需转载请自行联系原作者