Asserts that execution of the supplied executable throws an exception of the expectedType and returns the exception. If no exception is thrown, or if an exception of a different type is thrown, …

Note that e_info saves the exception object so you can extract details from it. For example, if you want to check the exception call stack or another nested exception inside.

1959 How do I declare custom exception classes in modern Python? My primary goal is to follow whatever standard other exception classes have, so that (for instance) any extra string I …

Oct 22, 2015 · TargetInvocationException masks the real exception by telling you that it crashed during "a method invocation", usually through something.Invoke. What you have to do is look …

Feb 3, 2010 · Someone please explain the difference between java.lang.RuntimeException and java.lang.Exception? How do I decide which one to extend if I create my own exception?

In C#, you do not have to derive a new class from Exception. You may simply "throw new Exception (message);" for example, and handle it generically in the block that will catch the …

There is 1) creating a custom exception type/class (as shown so many times) and 2) raising the exception. To raise an exception, simply pass the appropriate instance to throw, normally: …

A first chance exception of type 'System.Runtime.InteropServices.COMException' occurred in Microsoft.Surface.Core.dll ... The last Exception is thrown all the time until I stop the program.

A Type Initializer exception indicates that the type couldn't be created. This would occur typically right before your call to your method when you simply reference that class. Is the code you …

To do this, define a new class that inherits Exception, add all four exception constructors, and optionally an additional constructor that takes an InnerException as well as additional …