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Object-oriented Programming in C#
Exception Handling
* Fundamental Questions about Exception Handling
What is the motivation?
What is an error?
What is normal? What is exceptional?
Examples of normal and exceptional aspects
When are errors detected?
How are errors handled?
Where are errors handled?
* Conventional Exception Handling
Exception Handling Approaches
Mixing normal and exceptional cases
* Object-oriented Exception Handling
Errors as Objects
Classification of Errors
* Exceptions and Exception Handling in C#
Exceptions in a C# program
The try-catch statement C#
Handling exceptions in C#
The hierarchy of exceptions in C#
The class System.Exception in C#
Handling more than one type of exception in C#
Propagation of exceptions in C#
Raising and throwing exceptions in C#
Try-catch with a finally clause
Rethrowing an exception
Raising an exception in an exception handler
Comparison with exception handling in Java
* Recommendations about exception handling
Recommendations about exception handling
Recommendations about exception handling
Raising an exception in an exception handler
Inside a handler
, you can either rethrow an exception or raise/throw a new exception
Raising and throwing a new exception
Use this approach if you, of some reason, want to hide the original exception
Security, simplicity, ...
Consider propagation of the inner exception
Raising and throwing a new exception.
Output from the program that raises a new exception.
Raising and throwing a new exception, propagating original inner exception.
Output from the program that raises a new exception, with inner exception.
