轻松实现一个页面多文件上传

using  System;
using  System.Collections.Generic;
using  System.Linq;
using  System.Web;
using  System.Web.UI;
using  System.Web.UI.WebControls;

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

        }

        
protected   void  Button1_Click( object  sender, EventArgs e)
        {
            
string  path  =  Server.MapPath( " ~/upload/ " );
            HttpFileCollection uploadFiles 
=  Request.Files;
            
for  ( int  i  =   0 ; i  <  uploadFiles.Count; i ++ )
            {
                HttpPostedFile userPostedFile
= uploadFiles[i];
                
try
                {
                    
if  (userPostedFile.ContentLength  >   0 )
                    {
                        userPostedFile.SaveAs(path 
+  userPostedFile.FileName);
                    }
                }
                
catch  (Exception)
                {
                    
                    
throw ;
                }
            }
           
        }
    }
}
Code
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="uploadFile.aspx.cs" Inherits="FileIO.uploadFile" %>

<!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:FileUpload ID="FileUpload1" runat="server" /><br />
        
<asp:FileUpload ID="FileUpload2" runat="server" /><br />
        
<asp:FileUpload ID="FileUpload3" runat="server" /><br />
        
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="upload" />
    
    
</div>
    
</form>
</body>
</html>

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