Creating custom exceptions and when to use them

Custom exceptions are a powerful tool in C# that allows you to create your own exception types with specific error messages and properties. They can be used to provide more specific information about errors that occurred and make it easier to diagnose issues and fix bugs in your application.

Here is an example of how to create a custom exception in C#:

public class CustomException : Exception{
    public CustomException() : base() { }
    public CustomException(string message) : base(message) { }
    public CustomException(string message, Exception innerException) : base(message, innerException) { }
    public int ErrorCode { get; set; }
}

In this example, we are creating a custom exception called CustomException that is inherited from the built-in Exception class. We are providing three constructors that allow us to create exceptions with different...