ASP.NET Tutorial/File Directory/Utility

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Server side File viewer

   <source lang="csharp">

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="ViewFiles" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>ViewFiles</title>

</head> <body> 

   <form id="form1" runat="server">

                   <asp:ListBox ID="lstFiles" runat="server" Height="272px" AutoPostBack="True" OnSelectedIndexChanged="lstFiles_SelectedIndexChanged"></asp:ListBox>
<asp:Button ID="cmdRefresh" runat="server" Text="Refresh" OnClick="cmdRefresh_Click" />		 
                   <asp:Label ID="lblFileInfo" runat="server"></asp:Label>
<asp:Button ID="cmdDelete" runat="server" Text="Delete" OnClick="cmdDelete_Click" />		 
   </form>

</body> </html> File: Default.aspx.cs

using System; using System.Data; using System.Configuration; using System.Collections; 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.Text; public partial class ViewFiles : System.Web.UI.Page { 

   private string ftpDirectory;
   protected void Page_Load(object sender, EventArgs e)
   {
       ftpDirectory = Path.rubine(Request.PhysicalApplicationPath,"YourFolder");
       if (!this.IsPostBack)
       {
           CreateFileList();
       }
   }
   private void CreateFileList()
   {
       try
       {
           string[] fileList = Directory.GetFiles(ftpDirectory);
           lstFiles.DataSource = fileList;
           lstFiles.DataBind();
           lblFileInfo.Text = "";            
       }
       catch (Exception err)
       {
           lblFileInfo.Text = err.Message;
       }
       cmdDelete.Enabled = false;
   }
   protected void cmdRefresh_Click(object sender, EventArgs e)
   {
       CreateFileList();
   }
   protected void lstFiles_SelectedIndexChanged(object sender, EventArgs e)
   {
       try
       {
           StringBuilder displayText = new StringBuilder();
           string fileName = lstFiles.SelectedItem.Text;
           displayText.Append(fileName);
           displayText.Append(File.GetCreationTime(fileName).ToString());
           displayText.Append(File.GetLastAccessTime(fileName).ToString());
           FileAttributes attributes = File.GetAttributes(fileName);
           if ((attributes & FileAttributes.Hidden) == FileAttributes.Hidden)
           {
               displayText.Append("hidden");
           }
           if ((attributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
           {
               displayText.Append("read-only");
               cmdDelete.Enabled = false;
           }
           else
           {
               cmdDelete.Enabled = true;
           }
           lblFileInfo.Text = displayText.ToString();
       }
       catch (Exception err)
       {
           lblFileInfo.Text = err.Message;
           cmdDelete.Enabled = false;
       }
   }

   protected void cmdDelete_Click(object sender, EventArgs e)
   {
       try
       {
           File.Delete(lstFiles.SelectedItem.Text);
           CreateFileList();
       }
       catch (Exception err)
       {
           lblFileInfo.Text = err.Message;
       }
   }

}</source>

Источник — «http://www.nfex.ru/index.php?title=ASP.NET_Tutorial/File_Directory/Utility&oldid=3004»