Recent content by getmemoney

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    Index or Primary Key cannot contain a null value

    Hi Paul, Thanks for replying me. I'm facing this issue when I run into a next record of CTHoaDon Sub Form. I created a form/subform manually (w/o Form wizard) by created 2 forms separately, then I dragged the form CTHoaDonSubF into FormHoaDon like a subform by subform/subreport wizard. I don't...
  2. G

    Index or Primary Key cannot contain a null value

    I have a problem with "Index and Primary key" error in attached file, can someone tells me how to fix it. I'm new at Access 2010. I've deal with this error a week. I forgot to tell you that I was working on the form "FormHoaDon", and I get stuck there.
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