数据集导出CSV
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Export2Excel.aspx.cs" Inherits="WebApplication1.Export2Excel" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<div>
<span>通过UpdatePanel导出Excel</span>
<asp:UpdatePanel ID="updatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button2" runat="server" Text="Button" onclick="Button1_Click" />
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="Button2" />
</Triggers>
</asp:UpdatePanel>
</div>
</div>
</form>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<div>
<span>通过UpdatePanel导出Excel</span>
<asp:UpdatePanel ID="updatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button2" runat="server" Text="Button" onclick="Button1_Click" />
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="Button2" />
</Triggers>
</asp:UpdatePanel>
</div>
</div>
</form>
</body>
</html>
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.IO;
namespace WebApplication1
{
public partial class Export2Excel : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public void DataSetToExcel(DataSet ds, string FileName)
{
try
{
HttpResponse resp;
resp = HttpContext.Current.Response;
resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
resp.AppendHeader("Content-disposition", "attachment;filename=" +HttpUtility.UrlEncode(FileName) + ".xls");
resp.ContentType = "application/ms-excel";
//变量定义
string colHeaders = null;
string Is_item = null;
StringWriter sfw = new StringWriter();
//定义表对象与行对象，同时用DataSet对其值进行初始化
System.Data.DataTable dt = ds.Tables[0];
DataRow[] myRow = dt.Select();
int i = 0;
int cl = dt.Columns.Count;
//取得数据表各列标题，各标题之间以\t分割，最后一个列标题后加回车符
for (i = 0; i < cl; i++)
{
colHeaders += dt.Columns[i].Caption.ToString() + "\t";
}
sfw.WriteLine(colHeaders);
//逐行处理数据
foreach (DataRow row in myRow)
{
//当前数据写入
for (i = 0; i < cl; i++)
{
Is_item += row[i].ToString() + "\t";
}
sfw.WriteLine(Is_item);
//sw.WriteLine(Is_item);
Is_item = null;
}
resp.Write(sfw);
//resp.Clear();
resp.End();
}
catch (Exception e)
{
throw e;
}
}
protected void Button1_Click(object sender, EventArgs e)
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
dt.TableName = "物资供应表";
dt.Columns.Add("Id", typeof(int));
dt.Columns.Add("Wuzi", typeof(string));
dt.Columns.Add("Number",typeof(int));
for (int i = 0; i < 100; i++)
{
Random r=new Random(100);
DataRow row = dt.NewRow();
row["Id"] = i;
row["Wuzi"] = "物资名称"+i.ToString();
row["Number"]=r.Next(100);
dt.Rows.Add(row);
}
ds.Tables.Add(dt);
string ff = System.DateTime.Now.Date.ToString().Split(' ')[0].ToString() + "物资统计";
DataSetToExcel(ds, ff);
}
}
}
