>The same basic problem of "inheritance blindness" is true of CommandGroups and OptionGroups, also. Make really cool custom properties on your base CommandButton or OptionButton, and it's not used when you change the ControlCount of CommandGroups and OptionGroups. Bummer.

This could've been solved by an application of the Factory pattern (or a VFP-specific approximation, by letting you set a grid property for what class you want to use for its columns).