Question

Lets say I have an abstract class:

abstract class MyAbstract
{
    protected abstract object ImplementMePlz();

    public object DoSomething()
    {
        // Some logic here

        var result = ImplementMePlz();
        if (result == null)
            throw new YourChildClassIsStupidException("ImplementMePlz() should never return null.");

        return result;
    }
}

What kind of exception should I throw in this scenario? Is there a designated exception in the .NET framework, or should I create my own custom exception?

Answer 1

The answer to the question “Is there a designated exception in the .NET framework?” is “no” – there is no such exception.

If I were you, I would create a custom exception.