-If given a Value member (e.g. customer primary key) find the corresponding display text (e.g. customer name) as it shows in the combo box. 

So, say I have the following in a combo box where the first is the display text and second is the value member.

Andria Jensen - 5
Trent Taylor - 10
Ben Chase - 3

I should be able to find the text "Andria Jensen" from the combo box if I have the value 5.  I know you can do this with the Text property if you are trying to get the currently selected text.  However, what if I'm trying to get something that was previously selected?  Say comparing an original to a current value. 

I found this, but it doesn't seem to work correctly in all cases:
ComboBoxCtl.Properties.GetDisplayText(EditValueToFind)

How would you guys go about accomplishing this?