ASP.NET多文件上传

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

自己编写了一个多文件所上传的功能，与大家共享，不足之处望多多指教。
页面部分：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" ValidateRequest="false" %>

<!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>Untitled Page</title>
    <script type="text/javascript">
    //客户端添加附近
    function addFile(){
        var str='<input type="file" name="File"/><input type="button" value="Remove" onclick="remove(this)"/><br/>';
        document.all.files.insertAdjacentHTML("beforeEnd",str);
    }
    //客户端删除附近
    function remove(obj){
        obj.style.display="none";
        obj.nextSibling.style.display="none";
        obj.previousSibling.style.display="none";
        obj.previousSibling.disabled="disabled";
    }

    </script>
</head>
<body>
    <form >
    <div>

    <div >
    <%--此处必须有一个asp.net的服务器FileUpload控件--%>
        多文件上传<br />
    <asp:FileUpload ID="FileUpload1" runat="server" /><input type="button" value="Remove" onclick="remove(this)"/><br />
    </div>
        <input />
        <input />
        <asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="Upload" CausesValidation="False" /></div>
    </form>
</body>
</html>
代码部分：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Net;
using System.Text;

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

    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        HttpFileCollection fileList = HttpContext.Current.Request.Files;
        //HttpFileCollection fileList = Request.Files;
        StringBuilder strb = new StringBuilder();
        for (int i = 0; i < fileList.Count; i++)
        {
            HttpPostedFile file = fileList[i];
            string fileName = Path.GetFileName(file.FileName);
            string fileExtension = Path.GetExtension(fileName);

            if (file.ContentLength > 0)
            {
                file.SaveAs(Server.MapPath("Upload/" + fileName));
                strb.Append(string.Format("文件{0}上传成功，扩展名为{1}\\n", fileName, fileExtension));

            }