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Unique Selections in ComboBoxes - part 2

jkteater asked
Last Modified: 2012-05-12
now that we have all three boxes where you can not have the same user name in any of the boxes at the same time.  That works great!

The problem is what happens if the user changes their mind and selects a different user.  


KeyUser = jkteater <- is selected and removed from the list so that AME and PME can not have the jkteater value to select

What if the user selects jkteater and then figures out that is the wrong keyuser and selects jsmith.  Now jkeater is removed from the list and still can not be selected as a AME or PME

any ideas on how to address this?
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