Commented Issue: Manual instatiation of PropertyItem [19441]

I'm trying to programatically add PropertyItem(s) to a PropertyGrid. I'm using version 1.5 of the toolkit. I'm not sure if this even possible. I've included the class and xaml for the user control. Any and all help is appreciated.
Comments: ** Comment from web user: emartin **

AFAIK, you cannot do such a thing. Versoin 2.0 will probably change that...