DataGrid中的数据导出到Excel中

web.config中:
<appSettings>
   <add key="DataPath" value="db/Data.mdb" />
 </appSettings>

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.OleDb;
using System.Text;
using System.Configuration;

namespace my
{
    
/// <summary>
    
/// test3 的摘要说明。
    
/// </summary>

    public class test3 : System.Web.UI.Page
    
{
        
protected System.Web.UI.WebControls.DataGrid DataGrid1;

        
public static string strConn
        
{
            
get
            
{
                StringBuilder builder1 
= new StringBuilder();
                builder1.Append(
"Provider = Microsoft.Jet.OLEDB.4.0");
                builder1.Append(
"");
                builder1.Append(
"Data Source = ");
                builder1.Append(HttpContext.Current.Server.MapPath(
"."));
                builder1.Append(
@"\");
                builder1.Append(ConfigurationSettings.AppSettings[
"DataPath"]);
                
return builder1.ToString();
            }

        }

    
        
private void Page_Load(object sender, System.EventArgs e)
        
{
            OleDbConnection conn 
= new OleDbConnection(strConn);
            OleDbCommand com 
=new OleDbCommand("select top 2 * from news",conn);
            OleDbDataAdapter da
=new OleDbDataAdapter(com);
            DataSet ds
=new DataSet();
            da.Fill(ds,
"news");
            
            DataGrid1.DataSource
=ds.Tables["news"].DefaultView;
            DataGrid1.DataBind();
            OutPutExcel();
        }

        
public void OutPutExcel()
        
{
            
//定义文档类型、字符编码
            Response.Clear();
          Response.Buffer
= true;
          Response.Charset
="GB2312";
            
//下面这行很重要, attachment 参数表示作为附件下载,您可以改成 online在线打开
          
//filename=FileFlow.xls 指定输出文件的名称,注意其扩展名和指定文件类型相符,可以为:.doc    .xls    .txt   .htm
          Response.AppendHeader("Content-Disposition","attachment;filename=FileFlow.xls");
          Response.ContentEncoding
=System.Text.Encoding.GetEncoding("GB2312");
          
//Response.ContentType指定文件类型 可以为application/ms-excel、application/ms-word、application/ms-txt、application/ms-html 或其他浏览器可直接支持文档
          Response.ContentType = "application/ms-excel";
          
this.EnableViewState = false;
            
// 定义一个输入流
          System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
          System.Web.UI.HtmlTextWriter oHtmlTextWriter 
= new System.Web.UI.HtmlTextWriter(oStringWriter);
            
            DataGrid1.RenderControl(oHtmlTextWriter);
            
//this.RenderControl(oHtmlTextWriter);
          
//this 表示输出本页,你也可以绑定datagrid,或其他支持obj.RenderControl()属性的控件
          Response.Write(oStringWriter.ToString());
          Response.End();
        }


        
Web 窗体设计器生成的代码
    }

}
posted @ 2005-11-02 17:04  therockthe  阅读(260)  评论(0)    收藏  举报