Calling the base constructor in C#

Question

If I inherit from a base class and want to pass something from the constructor of the inherited class to the constructor of the base class, how do I do that?

For example, if I inherit from the Exception class I want to do something like this:

class MyExceptionClass : Exception {      public MyExceptionClass(string message, string extraInfo)      {          //This is where it's all falling apart          base(message);      } } 

Basically what I want is to be able to pass the string message to the base Exception class.

Answer 1

Modify your constructor to the following so that it calls the base class constructor properly:

public class MyExceptionClass : Exception {     public MyExceptionClass(string message, string extrainfo) : base(message)     {         //other stuff here     } } 

Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your call in the constructor body.