Learn about the risks of an exception being thrown where it is generally not expected, and ways to prevent some insidious errors.
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Although the .NET Framework provides many standard exceptions, you also can create, throw, and catch your own custom exceptions. In fact, custom exception types are a powerful feature of the VB .NET language.
Garbage collection does not determine when resources are collected, so it's up to you to protect classes that use finite resources that need some deterministic cleanup. Learn how the using block—a shorthand version of the try-finally block—enables you to do so.
This month, .NET Nuts & Bolts covers exception handling, examining what exceptions are and why they are important. You'll learn how to use them, how to create custom exceptions, and how to apply common best practices.
One often-overlooked ability of .NET is that you can create a custom exception handler that will allow you to catch all unhandled exceptions thrown during the execution of your application.
Your applications can end sadly and abruptly. While that's fine during development, you don't want to have your applications die with an exception in front of our users. Nothing is more embarrassing than a confusing dialog or web page referring to unhandled exceptions.
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