Asp.net 2.0 GridView数据导出Excel文件(示例代码下载)

布满荆棘的人生 2021-12-17 05:34 233阅读 0赞

(一) . 运行示例图

1. 待导出数据的GridView图:

![GridViewToExcel1.jpg][]

2. 生成的Excel文件

![GridViewToExcel2.jpg][]

(二). 代码

1. 前台页面 GridViewToExcelFile.aspx 代码:

1 ![None.gif][]<%@ Page Language="C\#" AutoEventWireup="true"  EnableEventValidation="false" CodeFile="GridViewToExcelFile.aspx.cs" Inherits="\_Default" %>  
 2 ![None.gif][]  
 3 ![None.gif][]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
 4 ![None.gif][]  
 5 ![None.gif][]<html xmlns="http://www.w3.org/1999/xhtml" >  
 6 ![None.gif][]<head runat="server">  
 7 ![None.gif][]    <title>Untitled Page</title>  
 8 ![None.gif][]</head>  
 9 ![None.gif][]<body>  
10 ![None.gif][]    <form id="form1" runat="server">  
11 ![None.gif][]    <div>  
12 ![None.gif][]        <asp:GridView ID="gvFoods" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan" BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None" EnableViewState="true">  
13 ![None.gif][]            <FooterStyle BackColor="Tan" />  
14 ![None.gif][]            <SelectedRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />  
15 ![None.gif][]            <PagerStyle BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue" HorizontalAlign="Center" />  
16 ![None.gif][]            <HeaderStyle BackColor="Tan" Font-Bold="True" />  
17 ![None.gif][]            <AlternatingRowStyle BackColor="PaleGoldenrod" />  
18 ![None.gif][]        </asp:GridView>  
19 ![None.gif][]        <br />  
20 ![None.gif][]        <asp:Button ID="Button1" runat="server" BackColor="\#C0C0FF" OnClick="Button1\_Click"  
21 ![None.gif][]            Text="Create Excel" Width="137px" />  
22 ![None.gif][]    </div>  
23 ![None.gif][]    </form>  
24 ![None.gif][]</body>  
25 ![None.gif][]</html>

2. 页面后台文件 GridViewToExcelFile.aspx.cs 代码:

1 using System;  
  2 using System.Data;  
  3 using System.Configuration;  
  4 using System.Web;  
  5 using System.Web.Security;  
  6 using System.Web.UI;  
  7 using System.Web.UI.WebControls;  
  8 using System.Web.UI.WebControls.WebParts;  
  9 using System.Web.UI.HtmlControls;  
 10 using System.IO;  
 11 using System.Text;  
 12 using System.Collections;  
 13   
 14 public partial class \_Default : System.Web.UI.Page   
 15 \{  
 16     protected void Page\_Load(object sender, EventArgs e)  
 17     \{  
 18        if(!Page.IsPostBack)  
 19        \{  
 20           CreateStructure();  
 21           this.gvFoods.DataSource = this.CreateData();  
 22           this.gvFoods.DataBind();  
 23        \}  
 24     \}  
 25    private DataTable CreateStructure()  
 26    \{  
 27       DataTable dt = new DataTable();  
 28       dt.Columns.Add(new DataColumn("CategoryID", typeof(int)));  
 29       dt.Columns.Add(new DataColumn("CategoryName", typeof(string)));  
 30       dt.Columns.Add(new DataColumn("Price", typeof(int)));        
 31       return dt;  
 32    \}  
 33    public DataSet CreateData()  
 34    \{  
 35       DataSet ds = new DataSet();  
 36       DataTable dt = this.CreateStructure();  
 37   
 38       DataRow drNew = dt.NewRow();        
 39       drNew = dt.NewRow();  
 40       drNew\["CategoryID"\] = 1;  
 41       drNew\["CategoryName"\] = "Apple";  
 42       drNew\["Price"\] = 2;  
 43       dt.Rows.Add(drNew);  
 44   
 45       drNew = dt.NewRow();  
 46       drNew\["CategoryID"\] = 2;  
 47       drNew\["CategoryName"\] = "Banana";  
 48       drNew\["Price"\] = 3;  
 49       dt.Rows.Add(drNew);  
 50   
 51       drNew = dt.NewRow();  
 52       drNew\["CategoryID"\] = 3;  
 53       drNew\["CategoryName"\] = "Orange";  
 54       drNew\["Price"\] = 1;  
 55       dt.Rows.Add(drNew);  
 56   
 57       drNew = dt.NewRow();  
 58       drNew\["CategoryID"\] = 4;  
 59       drNew\["CategoryName"\] = "Radish";  
 60       drNew\["Price"\] = 2;  
 61       dt.Rows.Add(drNew);  
 62   
 63       drNew = dt.NewRow();  
 64       drNew\["CategoryID"\] = 5;  
 65       drNew\["CategoryName"\] = "Pen";  
 66       drNew\["Price"\] = 3;  
 67       dt.Rows.Add(drNew);  
 68   
 69       drNew = dt.NewRow();  
 70       drNew\["CategoryID"\] = 6;  
 71       drNew\["CategoryName"\] = "Pencil";  
 72       drNew\["Price"\] = 7;  
 73       dt.Rows.Add(drNew);  
 74   
 75       drNew = dt.NewRow();  
 76       drNew\["CategoryID"\] = 7;  
 77       drNew\["CategoryName"\] = "Ruler";  
 78       drNew\["Price"\] = 3;  
 79       dt.Rows.Add(drNew);  
 80   
 81       drNew = dt.NewRow();  
 82       drNew\["CategoryID"\] = 8;  
 83       drNew\["CategoryName"\] = "Eraser";  
 84       drNew\["Price"\] = 5;  
 85       dt.Rows.Add(drNew);  
 86   
 87       ds.Tables.Add( dt );  
 88       return ds;  
 89    \}  
 90    protected void Button1\_Click(object sender, EventArgs e)  
 91    \{       
 92       StringWriter sw = new StringWriter();  
 93       HtmlTextWriter htw = new HtmlTextWriter(sw);  
 94       this.gvFoods.RenderControl(htw);  
 95       string strHtml = sw.ToString().Trim();  
 96   
 97       string ExcelFileName = "FoodList.xls";  
 98       string FilePhysicialPathName = Request.PhysicalApplicationPath;        
 99         
100       //生成的Excel文件名  
101       string objectExcelFileName = Path.Combine(FilePhysicialPathName, ExcelFileName);  
102   
103       if( File.Exists( objectExcelFileName ))  
104       \{  
105          File.Delete(objectExcelFileName);  
106       \}  
107       FileStream fs = new FileStream(objectExcelFileName, FileMode.Create);  
108       BinaryWriter bw = new BinaryWriter(fs, Encoding.GetEncoding("GB18030"));  
109       bw.Write(strHtml);  
110       bw.Close();  
111       fs.Close();  
112   
113    \}  
114     public override void VerifyRenderingInServerForm(Control control)  
115    \{  
116       //base.VerifyRenderingInServerForm(control);  
117    \}    
118 \}  
119

(三). 示例代码下载

[http://files.cnblogs.com/ChengKing/GridViewToExcel.rar][http_files.cnblogs.com_ChengKing_GridViewToExcel.rar]

Trackback: http://tb.blog.csdn.net/TrackBack.aspx?PostId=1128385

转载于:https://www.cnblogs.com/hdjjun/archive/2008/06/17/1223911.html

[GridViewToExcel1.jpg]: /images/20211217/deeac80a62164981b728a8e9bcaa07ee.png
[GridViewToExcel2.jpg]: /images/20211217/6fcae22d805b438e806fd7041e1ed546.png
[None.gif]: /images/20211217/eff7e8a271e0492aa254722b937cbdc3.png
[http_files.cnblogs.com_ChengKing_GridViewToExcel.rar]: http://files.cnblogs.com/ChengKing/GridViewToExcel.rar