Control to save or undo without save

  • Thread starter Thread starter Barcode
  • Start date Start date
B

Barcode

Hello
When I make a new post and fill one of the fields,
I have a probem,it comes a message which tell us the primary
key can not be null,
I want to undo the post, otherwise I must close the program
and restart it again or continue doing the post, so what do
you recommend about this problem?

Thanks
 

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