asked on

ASP.NET Server Tag Not Parsing in URL Field

Experts,

I'm banging my head against a wall here, and I'm sure this is a simple syntax issue. I am working with a ListView control, and I'm trying to construct a hyperlink that parses a datafield into the query string of a URL (the page that is being called in the URL serves the image data from the provided filename back as a filestream because the image being called resides in a location outside the application folder.)

<asp:HyperLink	runat="server"
		NavigateUrl='~/ServeFFAttachment.aspx?FileName=<%# Eval("ATTACHMENT_PATH") %>'
		Target="_blank">
	<%# Eval("ATTACHMENT_DESC") %>
</asp:HyperLink>

Open in new window

The server doesn't choke on the code, but the URL that gets associated with the hyperlink isn't evaluating the server tag (see below.)

http://serverfqdn:55555/ServeFFAttachment.aspx?FileName=<%# Eval("ATTACHMENT_PATH") %>

Open in new window

I should point out that this worked fine before I added the ASPX page to the URL (code below worked...)

<asp:HyperLink	runat='server'
		NavigateUrl='<%# Eval("ATTACHMENT_PATH") %>'
		Target='_blank'>
	<%# Eval("ATTACHMENT_DESC") %>
</asp:HyperLink>

Open in new window

Why does adding "~/ServeFFAttachment.aspx?FileName=" before the Server Tag mess it up??

HELP!! :-)

Thanks,

John

ASKER CERTIFIED SOLUTION

Robert Schutt

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

John Parker

ASKER

Robert,

That was it! Thank you very much for the quick response! I did have to make one minor change to the use of the URLEncoded function... I had to add the ToString method to the Eval function for it to work. Otherwise the compiler didn't like it.

NavigateUrl='<%# String.Format("~/ServeFFAttachment.aspx?FileName={0}", HttpUtility.UrlEncode(Eval("ATTACHMENT_PATH").ToString())) %>'

Open in new window

Thanks again!

John