DataGrid 完全攻略之二（把数据导出到Excel）
前台代码：html Response.Clear(); } 转载于:https://www.cnblogs.com/ghd258/archive/2005/10/12/253181.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：csusing 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{
/**//// 
/// WebForm1 的摘要说明。
/// 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#region Web Form Designer generated code override protected void OnInit(EventArgs e) { // // CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /**//// /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// private void InitializeComponent() { this.btnMIME.Click += new System.EventHandler(this.btnMIME_Click); this.Load += new System.EventHandler(this.Page_Load); } #endregion 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("");
}
else
{
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();
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