Displaying contents of a folder with ASP and allow users to download

isthisthingon · Feb 23, 2006

I have an asp page called protected.asp which is accessed after users login. I would like users to be able to click a button and view the contents of a folder (called "uploads") and download the files (mainly pdf's)they wish to view. How do I do this? All help is appreciated!!! Please go easy, I am an ASP newbie.

The next step to this would be to allow users to upload files with a filename and description for users to view.

Thanks!!!!!

julianonunes · Feb 23, 2006

Take a look at W3Schools tutorials about FSO (File System Object), it's everything you need.

isthisthingon · Feb 23, 2006

Here's what I came up with but when I click on the link to the file in the table, it says page not found. Any ideas?!

<<%@ Page Language="VB" %>
<%@ Import Namespace="System.IO" %>
<script language="VB" runat="server">

Sub Page_Load(sender as Object, e as EventArgs)
Dim strPath As String = "./uploads/"
Dim myDirInfo As DirectoryInfo

lblPath.Text = strPath

myDirInfo = New DirectoryInfo(Server.MapPath(strPath))

dgFileList.DataSource = myDirInfo.GetFiles()
dgFileList.DataBind()
End Sub

</script>

<html>
<head>
<title>ASP.NET Directory List Sample</title>
</head>
<body>

<p>
Contents of <strong><asp:Literal id="lblPath" runat="server" /></strong>
</p>

<asp

ataGrid id="dgFileList" runat="server"

Border = 5
BorderColor = "green"
CellSpacing = 0
CellPadding = 2
HeaderStyle-BackColor = "#006600"
HeaderStyle-ForeColor = "#FFFFFF"
HeaderStyle-Font-Bold = "True"
ItemStyle-BackColor = "#CCFFCC"

AutoGenerateColumns="False"
>

<Columns>
<asp:HyperLinkColumn DataNavigateUrlField="Name" DataNavigateUrlFormatString="dir/{0}" DataTextField="Name" HeaderText="File Name:" />
<asp:BoundColumn DataField="Length" HeaderText="File Size (bytes):" ItemStyle-HorizontalAlign="Right" />
<asp:BoundColumn DataField="LastWriteTime" HeaderText="Date Created:" />
<asp:BoundColumn DataField="Extension" HeaderText="File Type:" />
</Columns>
</asp

ataGrid>

<hr />

<p>
Click <a href="

http://www.nyackems.org">here</a>

to log out.
</p>

</body>
</html>

julianonunes · Feb 23, 2006

Oh, sorry, when you told only ASP, I thought that you was telling about ASP3...

Can you show the HTML output generated when the is ran?

isthisthingon · Feb 23, 2006

The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

--------------------------------------------------------------------------------

Please try the following:

If you typed the page address in the Address bar, make sure that it is spelled correctly.

Open the

http://www.nyackems.org

home page, and then look for links to the information you want.
Click the Back button to try another link.
HTTP 404 - File not found
Internet Information Services

--------------------------------------------------------------------------------

Technical Information (for support personnel)

More information:
Microsoft Support

julianonunes · Feb 23, 2006

Before clicking on the link, right click on the page and open the HTML source code, and post it here.

isthisthingon · Feb 23, 2006

before clicking on the link to open the file or to open the aspx page itself?

isthisthingon · Feb 23, 2006

This is the source code using the method you described of the aspx page itself which displays the contents of the directory and allows users to click on the file.

isthisthingon · Feb 23, 2006

sorry, forgot to paste

<

<html>
<head>
<title>ASP.NET Directory List Sample</title>
</head>
<body>

<p>
Contents of <strong>./uploads/</strong>
</p>

<table cellspacing="0" cellpadding="2" rules="all" Border="5" bordercolor="Green" border="1" id="dgFileList" style="border-color:Green;border-collapse:collapse;">
<tr style="color:White;background-color:#006600;font-weight:bold;">
<td>File Name:</td><td>File Size (bytes):</td><td>Date Created:</td><td>File Type:</td>
</tr><tr style="background-color:#CCFFCC;">
<td><a href="dir/web.config">web.config</a></td><td align="Right">309</td><td>2/23/2006 11:59:40 AM</td><td>.config</td>
</tr>
</table>

<hr />

<p>
Click <a href="

http://www.nyackems.org">here</a>

to log out.
</p>

</body>
</html>

julianonunes · Feb 23, 2006

The file web.config is under ./uploads/ only or under ./uploads/dir/?

isthisthingon · Feb 23, 2006

there is no web.config file on the web server at all .. .. what do I do next? This is puzzling since I have asp pages that are working fine on the site.

Tarwn · Feb 24, 2006

For the record, even if there was a web.config file, IIS wouldn't let you have access to it, or request it from a browser.

Split the following line into two lines:

Code:

myDirInfo = New DirectoryInfo(Server.MapPath(strPath))

and slap a breakpoint on it. Basically assign the returned value from Server.MapPath to a variable then use that variable for your DirectoryInfo object. This way you can see what path it builds before it continues.

The "dir" addition is coming from the property here:

Code:

DataNavigateUrlFormatString="dir/{0}"

i'm fairly certain that needs to be corrected if I have read your intentions and posts correctly.

-T

isthisthingon · Feb 24, 2006

thanks for your help, pardon my newbie status. how would i break that down to two lines? thanks!!!

julianonunes · Feb 24, 2006

Code:

Dim strCompletePath As String
strCompletePath = Server.MapPath(strPath)
myDirInfo = New DirectoryInfo(strCompletePath)

Or just...

Code:

strPath = Server.MapPath(strPath)
myDirInfo = New DirectoryInfo(strPath)

isthisthingon · Feb 26, 2006

Thanks for your help. I have replaced that line with the one you have posted 24 feb 06 10:47. It still returns the page cannot be displayed error once I click on one of the files that are displayed. Any ieas?

isthisthingon · Feb 26, 2006

Thanks for your help. I have replaced that line with the one you have posted 24 feb 06 10:47. It still returns the page cannot be displayed error once I click on one of the files that are displayed. Any ideas? The goal here is to display the list of files in a directory, which it does. And then allow users to click on a file and download it which is where it displays page cannot be displayed once the file is clicked on.

isthisthingon · Feb 26, 2006

I've got it, thanks for ALL your help!!!

julianonunes · Feb 27, 2006

What was the problem exactly?

isthisthingon · Feb 28, 2006

i made the change you suggested and also deleted dir from the following: DataNavigateUrlFormatString="dir/{0}

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