Unique Criteria

[Sophanith]

Dear All,

I have a problem how to get a unique criteria and i have apply a code but it is not working. The code just copy from Internet; i see the tutor it is working but when i apply it is not working. Please help me.

Thanks,

Best Regards

 

[Speedy]

Hi,

I updated a file published by chandoo

See example

 

[Sophanith]

that is working really really thanks for your help