Prevent Duplicate Form Entries


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Apr 13, 2012
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Hello-

I have a data entry form that is created off of a linked table. The field in the table I need to prevent duplicates of is called EmployeeID. When the user fills in the EmployeeID in the form, I would like to be able to prevent them from submitting it if the record already exists.

I know that you can change an index in a table to prevent this but since it is linked I am unable to change the design...

Any help is appreciated! Thanks!

Ashley
 
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