Stop Executing Code

Question

Hey Guys I am trying to stop processing code in a class and return to the from with an error. When it ty the return; method it only takes me out of the class and back into the form class and keeps executing code. What is the code that I should use to return to my form. Thanks

Alan · Answer

If the form only needs to know whether an error occurred or not I'd use bool for the 'ref' parameter. You can set this to false initially and then if the error occurs set it to true in the catch block within the class method.

Ryan Alford · Answer

as stated in many best practices books you should really put EVERYTHING in Try/Catch blocks.

Blake Arnold · Answer

Oh hey do you think I should set the ref value to a string or bool? I was thinking if I set it to bool then I can just run a simple if loop to check wheather it worked or not. Thanks

Blake Arnold · Answer

Alright that makes sense. I was hoping not to have to do it that way but I guess I will.

Alan · Answer

If you're calling a class method from your form then try placing the method call inside a try/catch block. Any exceptions which are thrown but not handled by the code in the class method should then be caught and handled in the form. Alternatively if you want to handle the exception in the class method but indicate to the form that the exception has occurred use the return value of the method or a 'ref' parameter to notify the error. The code in the form can then examine the return value or 'ref' parameter to see whether an error occurred and if it did take the appropriate action.