>>No question. The lack of these function always drove me nuts. They both just seemed so obvious.
>Josh and John,
>
>Just be careful that AddProperty is not hidng a poor design on you.

Jim,

That's a good point. I'd hate to see people using it to tack additional properties to instantiated objects instead of subclassing or modifying the existing hierarchy. I can imagine trying to debug an application and finding references to properties that aren't in the class definition all over the place.