Hi Giesbert,
Thanks for reply. I don't only need to check duplication. I want to check date
overlapping etc.(Please read previous messages of this thread). Anyway,if i want
to go with your suggestion than can I call a UDF in the expression for candidate index ?
Thanks
Mark
hi Mark,
what about declaring your date fields as candidate index. Then all checks would be handled by VFP, wich shouldn't allow you to have double entries.
Giesbert
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