asp.net2.0 上传图片并为用户创建相应文件夹（原创）

// 前台代码
<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeFile = " test.aspx.cs "  Inherits = " test "   %>

<! 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 >
        < asp:FileUpload ID = " FileUpload1 "  runat = " server "  CssClass = " input3 "  Width = " 290px " />& nbsp; & nbsp; & nbsp; & nbsp;
     < asp:Button  ID = " Button1 "  runat = " server "  Text = " 上传图片并创建文件夹 "  OnClick = " Button1_Click "   />
     </ div >
     </ form >
</ body >
</ html >

// 后台代码

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;


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

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string UploadFileName, UploadFileLastName;
        UploadFileName = FileUpload1.PostedFile.FileName;//文件在本地的原始位置    
        UploadFileLastName = UploadFileName.Substring(UploadFileName.LastIndexOf(".") + 1);//得到文件的扩展名
        Random rd = new Random();//产生随机数
        int valationNo = 10 + rd.Next(99);//产生随机数
        string suiji = valationNo.ToString();//产生随机数
        string UpLoadFileTime = DateTime.Now.ToString("yyyyMMddHHmmss") + suiji;//得到系统时间并加上随机数以便生成上传图片名称
        string NewUploadFileName = UpLoadFileTime + "." + UploadFileLastName;//产生上传图片的名称

        string UserDirectory = "TestFile";//所要创建文件夹的名字，实际运用中可为用户注册ID
        string UserPath = Server.MapPath("UploadFiles").ToString() + "\\" + UserDirectory + "\\" + "ProductsImages";
        if (!Directory.Exists(UserPath)) //如果文件夹不存在则创建
        {
            Directory.CreateDirectory(UserPath);
        }
        FileUpload1.PostedFile.SaveAs(NewUploadPahtName);//用保存的方法将图片上载
        string sUser_ProductsImageUrl = "UploadFiles/" + UserDirectory + "/" + "ProductsImages/" + NewUploadFileName;//得到服务端图片的虚拟路径
        //Response.Write(sUser_ProductsImageUrl);
    }
}