在对多文件打包中用到了 DotNetZip 的方法来实现对多文件压缩打包。需要到http://dotnetzip.codeplex.com/处下载该文件，然后引用即可。
Default.aspx:
<%@ Page Language="C#" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>图片打包下载</title>
</head>
<body>
<form id="form1" runat="server">
<p>
<asp:Button ID="PackDown" runat="server" Text="打包下载" OnClick="PackDown_Click" /></p>
<asp:GridView ID="GridView1" runat="server" Width="500px"
CellPadding="8" CellSpacing="1">
<Columns>
<asp:TemplateField HeaderText="<input type="checkbox"/>" InsertVisible="False">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="文件列表" InsertVisible="False">
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text=‘<%# eval_r("Name") %>‘></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text=‘<%# Bind("Name") %>‘></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</form>
</body>
</html>
Default.aspx.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using Ionic.Zip;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindFilesList();
}
}
void BindFilesList()
{
List<System.IO.FileInfo> lstFI = new List<System.IO.FileInfo>();
string[] files = System.IO.Directory.GetFiles("d:\\webroot");
foreach (var s in files)
{
lstFI.Add(new System.IO.FileInfo(s));
}
GridView1.DataSource = lstFI;
GridView1.DataBind();
}
protected void PackDown_Click(object sender, EventArgs e)
{
Response.Clear();
Response.ContentType = "application/zip";
Response.AddHeader("content-disposition", "filename=DotNetZip.zip");
using (ZipFile zip = new ZipFile(System.Text.Encoding.Default))//解决中文乱码问题
{
foreach (GridViewRow gvr in GridView1.Rows)
{
if (((CheckBox)gvr.Cells[0].Controls[1]).Checked)
{
zip.AddFile("d:\\webroot\\" + (gvr.Cells[1].Controls[1] as Label).Text, "");
}
}
zip.Save(Response.OutputStream);
}
Response.End();
}
}