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datagrid problem???

i have a problem with datagrid..
i bound a dataset to my datagrid...
and one of my columns has Unique constaraint...
if user enters duplicate value in datagrid, the datagrid show the user
error message..
but i want to show my message to user.
i even override rowchange and columnChange event in my DataTable..but still
datagrid show error messages:(
Nov 16 '05 #1
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