dev:ices

Let’s think the unthinkable, let’s do the undoable, let’s prepare to grapple with the ineffable itself, and see if we may not eff it after all. – Douglas Adams

C# Abstract Exceptions

We’ve just been writing some new exceptions based initially on an abstract Exception class. When the attempt to write a catch statement to catch all exceptions which inherited from this abstract base class it wasn’t behaving as expected.

The gotcha here is that C#/.NET doesn’t allow you to catch exceptions from an abstract class. If you want to catch a base class Exception, avoid that abstract.

You have been warned! This is for .NET 2 by the way

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