global.asax Application_Error not firing on forced exception??

[jobs]

I'm forcing an error/exception in one page as follows
Protected Overrides Sub OnLoad(ByVal e As EventArgs)
Dim badthing As New Exception("XXX")
Throw badthing
End Sub

And attempting to set a session variable to that error in the
global.asax file as follows:

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Dim ex As Exception = Server.GetLastError()
Session("LASTERROR") = ex.Message.ToString +
ex.InnerException.Message.ToString + ex.Source.ToString
Session("xx") = "xx"
' Code that runs when an unhandled error occurs
End Sub

in my web.config I also have customerrors turned on and redirecting to
an errorpage.aspx page where I want to read that session variable:

The exception happens and I am taken to my errors page, but no sign of
the session variable. If I debug in VS.NET I notice it never makes it
to that subroutine in the global.asax file.
Am I missing something? Could it be that I have no application name?
Is this an IIS thing maybe?

Thanks for any help or information.

[Juan T. Llibre]

re:
!The exception happens and I am taken to my errors page, but no sign of the session variable.
!Am I missing something?

You need to call Server.ClearError() after setting your session variables.

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Dim ex As Exception = Server.GetLastError()
Session("LASTERROR") = ex.Message.ToString + ex.InnerException.Message.ToString + ex.Source.ToString
Session("xx") = "xx"
Server.ClearError()
End Sub


Juan T. Llibre, asp.net MVP
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======================================
"jobs" <jo**@webdos.comwrote in message news:07**********************************@c30g2000 hsa.googlegroups.com...

I'm forcing an error/exception in one page as follows
Protected Overrides Sub OnLoad(ByVal e As EventArgs)
Dim badthing As New Exception("XXX")
Throw badthing
End Sub

And attempting to set a session variable to that error in the
global.asax file as follows:

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Dim ex As Exception = Server.GetLastError()
Session("LASTERROR") = ex.Message.ToString +
ex.InnerException.Message.ToString + ex.Source.ToString
Session("xx") = "xx"
' Code that runs when an unhandled error occurs
End Sub

in my web.config I also have customerrors turned on and redirecting to
an errorpage.aspx page where I want to read that session variable:

The exception happens and I am taken to my errors page, but no sign of
the session variable. If I debug in VS.NET I notice it never makes it
to that subroutine in the global.asax file.
Am I missing something? Could it be that I have no application name?
Is this an IIS thing maybe?

Thanks for any help or information.