Compile error: Make sure that the class defined in this code file.

[Larry Epn]

I've created a project from Microsoft's "club.vsi". I don't want inline code
so I've separated all aspx and ascx pages into code-behind pages. I'm
compiling the project and continue to get this error:

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). It is referring to "LoginBanner" on the first line of the code
below.

public partial class LoginBanner : System.Web.UI.UserControl
{
protected void Logoutbtn_Click(object sender, System.EventArgs e)
{
FormsAuthentication.SignOut();
}
}

This error has plagued my project. It bounces around from ASCX control to
control without any way to predict which it will pick on. I have tried
several suggestions obtained by googling with no success. I do not know what
I've done wrong to cause the compiler to act like this.

I've even tried fully-qualifying the "inherits=" by adding the file name
containing the control, e.g.:

<%@ Control Language="C#" AutoEventWireup="true"
CodeFile="LoginBanner.ascx.cs" Inherits="LoginBanner.LoginBanner" %>

Notice "LoginBanner.LoginBanner". What is really amazing is that I could
change this to:

<%@ Control Language="C#" AutoEventWireup="true"
CodeFile="LoginBanner.ascx.cs" Inherits="LoginBannerXYZ.LoginBanner" %>

and it doesn't complain. It just finds another ASCX control complains about
it the same way. It doesn't even care that LoginBannerXYZ.LoginBanner is
nonsense.

Thanks

[Steven Cheng[MSFT]]

Hello Larry,

From your description, when you tried modifying the ASP.NET "club" starter
kit's page/usercontrol to make it use separate code-behind file, it
reported some "Compile error: Make sure that the class defined in this code
file..........." error, correct?

Based on my experience, though the error message is quite straightforward,
the actual cause is likely due to some other related compilation setting or
referenced page/usercontrol components.

For the error, would you please paste the complete exception source and
callstack?

Also, since the starter-kit contains many different pages and component
classes, I would suggest you tried isolate the problem by create a
simplifid project whch only contain one or two pages(or with a related
usercontrol) that can reproduct the exact same error behavior. If so, we
can concentrate on that simplief project. If you feel it convenient, you
can send the project to me so that I can perform some local test against it.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead

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