asp.net创建文件夹和删除文件夹
日期:2011/3/30  发布人:润宇软件  浏览量:265
 

<%@ 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);
    }
}
删除文件

/**//// <summary>
    /// 删除文件文件或图片
    /// </summary>
    /// <param name="path">当前文件的路径</param>
    /// <returns>是否删除成功</returns>
    public static bool FilePicDelete(string path)
    {
        bool ret = false;
        System.IO.FileInfo file = new System.IO.FileInfo(path);
        if (file.Exists)
        {
            file.Delete();
            ret = true;
        }
        return ret;
    }