Jquery plugin（多文件上传）

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._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>无标题页</title>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <fieldset>
            <asp:FileUpload ID="FileUpload1" runat="server" class="multi"  maxlength="2" />
            <asp:Button ID="btnUpload" runat="server" Text="Button" onclick="btnUpload_Click" />
        </fieldset>
    </div>
    </form>
</body>
</html>
后台代码：protected void btnUpload_Click(object sender, EventArgs e)
       {
           try
           {
               HttpFileCollection hfc = Request.Files;
               for (int i = 0; i < hfc.Count; i++)
               {
                   HttpPostedFile hpf = hfc[i];
                   if (hpf.ContentLength > 0)
                   {
                       hpf.SaveAs(Server.MapPath("MyFile") + "\\"
                           + System.IO.Path.GetFileName(hpf.FileName));
                       Response.Write("<script>alert('文件上传成功!')</script>");
                   }
               }
           }
           catch (Exception ex)
           {
               throw ex;
           }
       }

效果图：

Jquery plugin下载：/Files/ly5201314/multiple-file-upload.zip，

只需要引用两个js文件：jquery.js；jquery.MultiFile.js。class="multi" maxlength="2" 是关键代码。