Summary
Exceptions are a way of life in the .NET Framework and the CLR. For this reason, a thorough understanding of throwing and catching exceptions is a prerequisite to writing robust and maintainable code with Visual Basic .NET.
In Visual Basic .NET, all exceptions support the universal programming contract de.ned by the System.Exception class. As a consequence, all exceptions can be dealt with in a uniform fashion. You will encounter many system-de.ned exceptions on a frequent basis. In addition, you may need to create user-de.ned exceptions to deal with the speci.c needs of an application or component library; this kind of custom exception class can inherit from the ApplicationException class.
Finally blocks are critical when code should ...
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