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Visual Basic 2015 Unleashed
book

Visual Basic 2015 Unleashed

by Alessandro Del Sole
July 2015
Intermediate to advanced content levelIntermediate to advanced
1300 pages
87h 27m
English
Sams
Content preview from Visual Basic 2015 Unleashed

The Throw Keyword

In some situations you need to programmatically throw exceptions or you catch exceptions but do not want to handle them in the Catch block that intercepted exceptions. Programmatically throwing exceptions can be accomplished via the Throw keyword. For instance, the following line of code throws an ArgumentNullException that usually occurs when a method receives a null argument:

Throw New ArgumentNullException

You often need to manually throw exceptions when they should be handled by another portion of code, also in another application. A typical example is when you develop class libraries. A class library must be as abstract as possible, so you cannot decide which actions to take when an exception ...

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Publisher Resources

ISBN: 9780134196664Purchase book