Please help with error handling - ng.asp-net-forum.dotnetnuke-custom_modules

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5 Items, 1 Pages 1 |< << Go >> >|

	NDLanding
	Asp.Net User

Please help with error handling

3/3/2006 7:25:25 PM

0/0

Please could someone explain how to handle errors using DotNetNuke inbuilt classes. I've developed a module and just to see how it worked I placed the following code in a button click event.

Try
   Dim a As Integer
   Dim b As Integer
   Dim c As Integer
   b = 1
   c = 0
   a = b / c
Catch ex As Exception
   Dim errMsg As String
   errMsg = ex.Message
   ProcessModuleLoadException(Me, ex)
End Try

As I step through the code I can see that an error is generated - the message is something like a division by zero error which I expected - however when I let the code run through eventually the following gets displayed on my page:

A critical error has occurred.
Object reference not set to an instance of an object.

Is this normal and if so how do I get the actual error to be displayed to the user? (I'm not sure if it makes a difference but my module is a multi-interface one. My module comprises of a single control essentially into which other user controls are loaded at runtime - all of the user controls implement Entities.Modules.PortalModuleBase though. The error is occuring in one of the child controls).

Thanks,

Norm

	AerosSaga
	Asp.Net User

Re: Please help with error handling

3/6/2006 9:34:40 PM

0/0

NDLanding wrote:
Try
   Dim a As Integer
   Dim b As Integer
   Dim c As Integer
   b = 1
   c = 0
   a = b / c
Catch ex As Exception
   ProcessModuleLoadException(Me, ex)
End Try

DNN does the rest. If you have any other code you want to execute just use a finally.

Regards,

Scott Schecter
EntitySpaces
Schecter Technology Solutions

	NDLanding
	Asp.Net User

Re: Please help with error handling

3/9/2006 10:43:37 AM

0/0

Hi AerosSaga,

Thanks for the reply. It doesn't seem to be doing what one might expect. As I said it gives me that weird error message - which doesn't indicate to the user what has gone wrong.

Norm

	AerosSaga
	Asp.Net User

Re: Please help with error handling

3/9/2006 2:01:45 PM

0/0

Well I think what your saying is you don't want dnn to handle any of your error routine. If that is in fact the case just remove the ProcessModuleLoadException and insert your own code there.

Regards,

Scott Schecter
EntitySpaces
Schecter Technology Solutions

	NDLanding
	Asp.Net User

Re: Please help with error handling

3/10/2006 9:58:07 AM

0/0

Hi,

Thanks for your continued interest. No, I do want DNN to handle errors - it's just that I dont think it is working as expected. Through trial and error I've found that if I pass me.parent to ProcessModuleLoadException it works as I would expect - i.e. the correct error message is displayed (or indeed a custom message if I so wish). It may have soemthing to do with the design of my module - essentially I load user controls at runtime into a placeholder on my view control.

Norm

5 Items, 1 Pages 1 |< << Go >> >|

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