Return Value
A new form object that you will typically place into the FormDefinitions collection of this object.
This method creates a new form that you can place into this form set. The implementation of this method resides in the FormSetFile class or in a class you derive from FormSet.
If you derive a new class from FormSet, you must override this method with code that creates a new FormDefinition object. Normally, you will also derive a new class from the FormDefinition class and return an instance of that class instead.