PropertyGrid Updating View Model

[Arthur]

Just started testing this component,

Managed to get the PropertyGrid to update another UI control (button) so can change the size of the button  by changing the properties in the grid.

I will actually need to bind the PropertyGrid to a object in a View Model (which I have done) but when I change the details in the property grid the underlying object is not updated. 

Note I have linked up INotifyPropertyChanged etc as normal. So is there anything else that I need to do other that this 

Thanks

Arthur