On a ComboBoxEdit control, you will need to handle the Load event of the form and set the SelectedIndex of the combo box to 0.  This is just a result of the functionality of the DevExpress ComboBoxEdit... the control does not automatically select the top item and leaves it's selected index at -1 when the list is populated.

I am using the inherited control ComboboxEdit (which is the DevExpress wrapped control), when I set the TopMostItem for this control it doesnt automatically set to it.



Any thoughts?