Azdravei (and apologies for mangling your words),

I am trying to inherit from the RadComboBox in my winform project. For starters, I simply created a class that inherited the RadComboBox and placed an instance of it on a form, right next to the original, uninherited RadComboBox. The two controls look radically different, with my inherited version looking like a broken misfit unworthy of the name Telerik.

I would like to know how to properly inherit and extend Rad controls. In my case, I simply want to add a field and property to the ComboBox to remember its previous SelectedIndex.

Thank you,
Guillaume