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

(一) . 运行示例图

1. 待导出数据的GridView图:

2. 生成的Excel文件

(二). 代码

1. 前台页面 GridViewToExcelFile.aspx 代码:

<%@ Page Language="C#" AutoEventWireup="true" EnableEventValidation="false" CodeFile="GridViewToExcelFile.aspx.cs" Inherits="_Default" %>
2

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4

<html xmlns="http://www.w3.org/1999/xhtml" >
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<head runat="server">
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<title>Untitled Page</title>
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</head>
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<body>
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<form id="form1" runat="server">
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<div>
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<asp:GridView ID="gvFoods" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan" BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None" EnableViewState="true">
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<FooterStyle BackColor="Tan" />
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<SelectedRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />
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<PagerStyle BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue" HorizontalAlign="Center" />
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<HeaderStyle BackColor="Tan" Font-Bold="True" />
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<AlternatingRowStyle BackColor="PaleGoldenrod" />
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</asp:GridView>
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<br />
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<asp:Button ID="Button1" runat="server" BackColor="#C0C0FF" OnClick="Button1_Click"
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Text="Create Excel" Width="137px" />
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</div>
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</form>
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</body>
25

</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

https://files.cnblogs.com/ChengKing/GridViewToExcel.rar

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