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Need a simple vb asp.net example for displaying the contents of a web server directory

Posted on 2014-09-25
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Last Modified: 2014-10-21
I have an web server that is running on a private internal network.  I maintain the web site and would like to add a directory where certain users can ftp pdf documents.   I  am looking for a simple vb asp.net example to build a web page that when opened would dynamically create a sorted list of documents in this directory with hyperlinks to open them.
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Question by:IT-Ed
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Prashant Jagdale earned 1500 total points
ID: 40345487
Hi,
Please place the tree view control on a webpage and check if the following code works

<asp:TreeView Id="MyTree"
                      PathSeparator = "|"
                      ExpandDepth="0"
                      runat="server" ImageSet="Arrows"
        AutoGenerateDataBindings="False">
            <SelectedNodeStyle Font-Underline="True"
                HorizontalPadding="0px" VerticalPadding="0px" ForeColor="#5555DD"></SelectedNodeStyle>
            <NodeStyle VerticalPadding="0px" Font-Names="Tahoma" Font-Size="10pt"
                HorizontalPadding="5px" ForeColor="#000000" NodeSpacing="0px"></NodeStyle>
            <ParentNodeStyle Font-Bold="False" />
            <HoverNodeStyle Font-Underline="True" ForeColor="#5555DD"></HoverNodeStyle>
         </asp:TreeView>

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using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.IO;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Media;
using System.Drawing;
using System.Drawing.Imaging;
public partial class CreateFolder : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
        if (Page.IsPostBack == false)
        {
             System.IO.DirectoryInfo RootDir = new System.IO.DirectoryInfo(Server.MapPath("~/"));
             // output the directory into a node
            TreeNode RootNode = OutputDirectory(RootDir, null);
            // add the output to the tree

             MyTree.Nodes.Add(RootNode);
        }
    }
    

    TreeNode OutputDirectory(System.IO.DirectoryInfo directory, TreeNode parentNode)
    {
        // validate param
        if (directory == null) return null; 
        // create a node for this directory
        TreeNode DirNode = new TreeNode(directory.Name);
        // get subdirectories of the current directory
        System.IO.DirectoryInfo[] SubDirectories = directory.GetDirectories();
       // OutputDirectory(SubDirectories[0], "Directories");
        // output each subdirectory
        for (int DirectoryCount = 0; DirectoryCount < SubDirectories.Length; DirectoryCount++)
        {
            OutputDirectory(SubDirectories[DirectoryCount], DirNode);
        }
        // output the current directories file
        System.IO.FileInfo[] Files = directory.GetFiles();
        for (int FileCount = 0; FileCount < Files.Length; FileCount++)
        {
            DirNode.ChildNodes.Add(new TreeNode(Files[FileCount].Name));
        }        // if the parent node is null, return this node
        // otherwise add this node to the parent and return the parent
        if (parentNode == null)
        {
            return DirNode;
        }
        else
        {
            parentNode.ChildNodes.Add(DirNode);
            return parentNode;
        }
    }
  }

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