How to set ComboBox.SelectionBoxItemTemplate in Silverlight 3.0

Question

I need to be able to have a SelectionBoxItemTemplate for my ComboBox, but am unsure how to do this or if there is another way in Silverlight 3.0 to do this.
In my drop-down list I have a List of CheckBoxes, and TextBlocks, this works fine, however the Selected Item is one of these when I click on it, i.e. the Checkbox shows in the top of the Combobox, I don't want this, instead I want it to say "Display", as this is a list of display settings, how can the ComboBox be changed to allow this in Silverlight?

Answer 1

This is not actually possible in Silverlight 3, although the Property can be read, it cannot be sent, marking this as answer, but hope Silverlight 4.0 will support this.