Using Silverlight RadCombBox, I am trying to add Text/Value pairs to the combo box programmatically behind the scenes. I can create a RadComboBoxItem, which provides me with access to "Content" to put the Text, but I don't see a property for "Value" to assign a value to the Item. I see that the ComboBox control itself has "SelectedValue", which returns the Item that I added. I can push the value into the Tag property, but that doesn't seem like the correct solution. What do you recommend?