CHAPTER 7 UNDERSTANDING STRUCTURED EXCEPTION HANDLING
Figure 7-5. Viewing exception details
Source Code The ProcessMultipleExceptions project is included under the Chapter 7 subdirectory.
Summary
In this chapter, you examined the role of structured exception handling. When a method needs to send
an error object to the caller, it will allocate, configure, and throw a specific System.Exception derived
type via the C# throw keyword. The caller is able to handle any possible incoming exceptions using the
C# catch keyword and an optional finally scope.
When you are creating your own custom exceptions, you ultimately create a class type deriving from
System.ApplicationException, which denotes an exception thrown from the currently executing
application. In contrast, error objects deriving from System.SystemException represent critical (and fatal)
errors thrown by the CLR. Last but not least, this chapter illustrated various tools within Visual Studio
that can be used to create custom exceptions (according to .NET best practices) as well as debug
exceptions.
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