Another Combobox question - Bug?

[zfeld]

I have a ComboBox with the Simple DropDownStyle. when I select an item in
the combobox list the SelectedIndexCh anged Event and the
SelectionChange Commited Event are fired. When I type something into the
ComboBox textfield it de-selects the current selection and any subsequent
query of the comboBox's SelectedIndex property will reveal an index of -1
(nothing selected).

However, there was neither a SelectedIndexCh anged Event nor a
SelectionChange Commited Event fired. Is this right? Is there any way for me
to know the this de-selection occurred.

I have another control showing details of the current selected item and it
looks kinda stupid when it is still displaying the old value that has
already been de-selected.

Any Ideas?