Exceptions Overview
At the base of all exception classes is System.Exception, which derives from System.Object.
Note
It is possible to throw a System.Object directly from System.Object, but doing so is not consistent with how exceptions are used in the CLR. In addition, the C# compiler doesn't allow it.
Most (if not all) of the exception classes derived from System.Exception do not add functionality, but they do provide a type so that errors can be filtered and handled in the correct context as discussed previously. Many classes are derived directly from System.Exception. A couple of classes that derive directly from System.Exception are IOException and WebException. IOException is thrown when an I/O error occurs (usually the result of an operation ...
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