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前台代码:html
<%@ 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>

后台代码:cs
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();
        }

    }

}

方法二:
if(DataGrid1.Items.Count==0)
    {
     Response.Write("<script>alert('对不起,你没有查询到任何记录,不能导出数据')</script>");
    }
    else
    {
     

     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();

posted on 2005-10-12 16:55  LDAR泄漏检测与修复  阅读(543)  评论(1编辑  收藏  举报