使用ASP.NET的GridView导出/儲存資料至Excel,Word,Txt檔,Powerpoint

最新推荐文章于 2021-08-27 21:02:31 发布

最新推荐文章于 2021-08-27 21:02:31 发布 · 63 阅读

文章标签：

#ui #xhtml #c#

本文介绍了一个使用ASP.NET实现从网页导出数据到Excel、Word和txt文件的方法。通过简单的代码示例，展示了如何将GridView中的数据转换为不同格式的文件并提供下载。

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ps.註解的部分屬於儲存檔案的程式碼

excel.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="excel.aspx.cs" Inherits="excel" %>
02
03 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
04 <html xmlns=" http://www.w3.org/1999/xhtml">
05 <head id="Head1" runat="server">
06 <title>未命名頁面</title>
07 </head>
08 <body>
09 <form id="form1" runat="server">
10 <div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="id" HeaderText="id" InsertVisible="False" ReadOnly="True"
SortExpression="id" />
<asp:BoundField DataField="gender" HeaderText="gender" SortExpression="gender" />
</Columns>
</asp:GridView>
<asp:Button ID="ExportExcel" runat="server" Text="匯出Excel檔/儲存Excel檔" OnClick="ExportExcel_Click"
Width="200px" /><br />
<asp:Button ID="ExportWord" runat="server" Text="匯出Word檔/儲存Word檔" OnClick="ExportWord_Click"
Width="200px" /><br />
<asp:Button ID="ExportText" runat="server" Text="匯出txt檔/儲存txt檔" Width="200px" OnClick="ExportText_Click" />
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:DatabaseConnectionString %>"
SelectCommand="SELECT * FROM [user]"></asp:SqlDataSource>
</div>
</form>
</body>
</html>
excel.aspx.cs

using ...System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.IO;

public partial class excel : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void ExportExcel_Click(object sender, EventArgs e)
{
//匯出excel檔
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=test.xls");//excel檔名
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = "";
System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
DataGrid dg = new DataGrid();
dg.DataSource = this.SqlDataSource1.Select(DataSourceSelectArguments.Empty);
dg.DataBind();
dg.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();

//儲存excel檔
//System.IO.StringWriter sw = new System.IO.StringWriter();
//System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
//DataGrid dg = new DataGrid();
//dg.DataSource = this.SqlDataSource1.Select(DataSourceSelectArguments.Empty);
//dg.DataBind();
//dg.RenderControl(htw);
//System.IO.File.WriteAllText(@"c:/test.xls", sw.ToString());
}
protected void ExportWord_Click(object sender, EventArgs e)
{
//匯出word檔
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=test.doc");//word檔名
Response.ContentType = "application/vnd.ms-word";
Response.Charset = "";
System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
DataGrid dg = new DataGrid();
dg.DataSource = this.SqlDataSource1.Select(DataSourceSelectArguments.Empty);
dg.DataBind();
dg.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();

//儲存word檔
//System.IO.StringWriter sw = new System.IO.StringWriter();
//System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
//DataGrid dg = new DataGrid();
//dg.DataSource = this.SqlDataSource1.Select(DataSourceSelectArguments.Empty);
//dg.DataBind();
//dg.RenderControl(htw);
//System.IO.File.WriteAllText(@"c:/test.doc", sw.ToString());
}
protected void ExportText_Click(object sender, EventArgs e)
{
//匯出txt檔
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=test.txt");//txt檔名
Response.ContentType = "application/vnd.ms-word";
Response.Charset = "";
System.Text.StringBuilder sb = new System.Text.StringBuilder();
DataTable dt = new DataTable();
dt = ((DataView)this.SqlDataSource1.Select(DataSourceSelectArguments.Empty)).ToTable();
//欄位名
for (int i = 0; i < dt.Columns.Count; i++)
{
sb.Append(dt.Columns[i].ColumnName);
sb.Append(",");
}
sb.Append(Environment.NewLine);
//資料
for (int i = 0; i < dt.Rows.Count; i++)
{
for (int j = 0; j < dt.Columns.Count; j++)
{
sb.Append(dt.Rows[i][j].ToString());
sb.Append(",");
}
sb.Append(Environment.NewLine);
}
Response.Write(sb.ToString());
Response.End();

//儲存txt檔
//System.Text.StringBuilder sb = new System.Text.StringBuilder();
//DataTable dt = new DataTable();
//dt = ((DataView)this.SqlDataSource1.Select(DataSourceSelectArguments.Empty)).ToTable();
////欄位名
//for (int i = 0; i < dt.Columns.Count; i++)
//...{
// sb.Append(dt.Columns[i].ColumnName);
// sb.Append(",");
//}
//sb.Append(Environment.NewLine);
////資料
//for (int i = 0; i < dt.Rows.Count; i++)
//...{
// for (int j = 0; j < dt.Columns.Count; j++)
// ...{
// sb.Append(dt.Rows[i][j].ToString());
// sb.Append(",");
// }
// sb.Append(Environment.NewLine);
//}
//System.IO.File.WriteAllText(@"c:/test.txt", sb.ToString());
}

protected void Button3_Click(object sender, EventArgs e)
{
//Export("application/ms-excel", "报表.xls");//输出Excel
Export("application/ms-powerpnt", "报表.ppt"); //输出Powerpoint
}
}