>In my first subclass of a base class, can I always execute the method code there ?
>Let's say in a grid, I have my Init event code, that must be executed. When another developer places code in the Init event of the subclassed object, they must use dodefault() or my code is not executed. Is there a way to force my code to be executed, unless a NODEFAULT is placed in the object ?

Sorry, but you must use DODEFAULT() when you enter code in a subclass method