导出文件
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" Text="导出" /> <br /><br /> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="username" DataSourceID="LinqDataSource1"> <Columns> <asp:BoundField DataField="username" HeaderText="用户名" ReadOnly="True" SortExpression="username" /> <asp:BoundField DataField="password" HeaderText="密码" SortExpression="password" /> <asp:BoundField DataField="nickname" HeaderText="昵称" SortExpression="nickname" /> <asp:BoundField DataField="genderStr" HeaderText="性别" SortExpression="gender" /> <asp:BoundField DataField="birthdayStr" HeaderText="生日" SortExpression="birthday" /> <asp:BoundField DataField="area" HeaderText="地区" SortExpression="area" /> <asp:BoundField DataField="nationName" HeaderText="民族" SortExpression="nation" /> </Columns> <RowStyle HorizontalAlign="Center" VerticalAlign="Middle" /> </asp:GridView> <asp:LinqDataSource ID="LinqDataSource1" runat="server" ContextTypeName="mydbDataContext" EntityTypeName="" TableName="Users"> </asp:LinqDataSource> </div> </form> </body> </html>
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using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Text; using System.IO; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Button1.Click += Button1_Click; } void Button1_Click(object sender, EventArgs e) { using (mydbDataContext conn = new mydbDataContext()) { List<Users> list = conn.Users.ToList(); StringBuilder s = new StringBuilder(); //拼接表格字符串 s.Append("<table border=1>"); //标题 s.Append("<tr>"); s.Append("<td>用户名</td>"); s.Append("<td>密码</td>"); s.Append("<td>昵称</td>"); s.Append("<td>性别</td>"); s.Append("<td>生日</td>"); s.Append("<td>地区</td>"); s.Append("<td>民族</td>"); s.Append("</tr>"); //内容 foreach (Users u in list) { s.Append("<tr>"); s.Append("<td>"+u.username+"</td>"); s.Append("<td>"+u.password+"</td>"); s.Append("<td>"+u.nickname+"</td>"); s.Append("<td>"+u.genderStr+"</td>"); s.Append("<td>"+u.birthdayStr+"</td>"); s.Append("<td>"+u.area+"</td>"); s.Append("<td>"+u.nationName+"</td>"); s.Append("</tr>"); } s.Append("</table>"); //文件保存路径 string path = "file/" + DateTime.Now.ToString("yyyyMMdd") + "Users表数据.xlsx"; //创建流 StreamWriter sw = new StreamWriter(Server.MapPath(path)); //写入文件 sw.Write(s); //关闭流 sw.Close(); //下载 Response.Redirect(path); } } }