Error with code-behind for user control

[Alan Silver]

Hello,

I have a set of user controls that all use the same code-behind file.
The first line of each of the ascx files looks like...

<%@ CodeFile="ShowCategory.cs" Language="C#" Inherits="ShowCategory" %>

and the top of the code-behind (ignoring the "using" statements) looks
like...

namespace MyECommClasses {
public partial class ShowCategory : UserControl {

However, when I try to run this site, VWD gives me the following error
in the code-behind file...

"Make sure that the class defined in this code file matches the
'inherits' attribute, and that it extends the correct base class (e.g.
Page or UserControl)."

As you can see, the inherits class matches the one in the class file, so
it seems that it thinks that I'm not extending the right base class.
However, one of the ones it suggests is "UserControl" which is what I do
extend.

Any ideas? TIA

 

[Alan Silver]

Any ideas? TIA

Well, after posting, I found the answer (as usual!!). It was the
namespace that was causing the problem. I had added that in to try and
solve an earlier problem!! Removing it fixed the error I was getting.

Unfortunately, I'm now getting a different error. The line shown
below...

ctlShowCategory = (ShowCategory)LoadControl(strControlName);

....throws an exception...

"Unable to cast object of type 'ASP.ShowCategory' to type
'ShowCategory'."

The top of the ascx file now looks like...

<%@ CodeFile="ShowCategory.cs" Language="C#" Inherits="ShowCategory"
ClassName="ShowCategory" %>

and the class definition in the code behind looks like...

public partial class ShowCategory : UserControl {

so I don't see why it can't cast it. Any ideas? TIA

 

[Alan Silver]

Any ideas? TIA

This is getting to be a bit like a monologue!!

Anyway, I thought I would let you know that the answer turned out to be
nothing more complex than stopping the server and deleting the temporary
ASP.NET files. It seems that the server got itself confused.

Hope this helps someone.

 

[NikitinValera]

Here, I find a solution.
http://msdn.microsoft.com/asp.net/r...en-us/dnaspp/html/conversionissuesasp_net.asp

Add this to your aspx Page, that consumes UserControl
<%@ Reference Control="/..<your path here>../ShowCategory .ascx" %>

 

[cobra302]

I found the solution here:

codeguru302.blogspot.com

Changing the attribute from "codefile" to "codebehind" worked for me.