calls GetBaseException and outputs the error message of the initial exception.

 

using System;

public class Starter {
    public static void Main() {
        try {
            MethodA();
        } catch (Exception except) {
            Exception original = except.GetBaseException();
            Console.WriteLine(original.Message);
        }
    }

    public static void MethodA() {
        try {
            MethodB();
        } catch (Exception except) {
            throw new ApplicationException("Inner Exception", except);
        }
    }

    public static void MethodB() {
        throw new ApplicationException("Innermost Exception");
    }
}

1.	Exception handle with your own exception class
2.	illustrates a custom exception
3.	Demonstrates defining and using a custom exception class
4.	illustrates the use of a System.Exception object
5.	Using Exception members
6.	Use the NullReferenceException
7.	Use a custom Exception for RangeArray errors
8.	Derived exceptions must appear before base class exceptions
9.	uses some of the properties of the Exception class
10.	Using checked and unchecked
11.	refines the System.Exception base class with name of the type and time of exception to create your own Exception
12.	Using checked and unchecked with statement blocks
13.	Exception Handling: The Exception Hierarchy 1
14.	Exception Handling: The Exception Hierarchy 2
15.	Exception Handling: The Exception Hierarchy 3
16.	Exception Handling User-Defined Exception Classes

calls GetBaseException and outputs the error message of the initial exception. : Exception Class « Language Basics « C# / C Sharp

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