Question

I suspect that the ContentControl which have a property of ContentTemplate is either a DataTemplate or a ControlTemplate depending on what each of derived silverlight control has declared it in its class.

If yes, how can I customize both of them for the same control at once?

e.g. A ListBoxItem is a ContentControl, I can set its ContentTemplate to a DataTemplate declaratively inline. Can I set a custom ControlTemplate for it inline? or A ControlTemplate can only be set separately?

Answer 1

Every control has a ControlTemplate which defines what the control looks like. A control can have multiple DataTemplates depending on how it deals with data, a ContentControl usually only has Content which can be templated via a ContentTemplate. Some headered control may also have a data template property to template the header, it all depends on the control you are using.