Data validation before update. (1 Viewer)

[Poco_90]

I am trying to figure out how to validate some data if a user chooses to save a record. On my form I have this as my before update event

 If MsgBox("Would You Like To Save This New Record?", vbQuestion + vbYesNo + vbDefaultButton1, "Save This Record ???") = vbNo Then
   Me.Undo

My question is if the users says yes, how to I incorporate the validation below?

If IsNull(Me.Serial) Then
        MsgBox "Please Scan a Serial Number!", vbOKOnly

I have searched and can't seem to find a solution. I can get the validation to pop up when a field is missing, but instead of aborting the save, the incomplete record saves.

Also, I would like the form to remain open if a user chooses to save the record but no matter where I place this the form still closes

DoCmd.OpenForm "frmWareIN", acNormal, "", "", , acNormal

I don't understand what is happening on the yes event, and that is where my problem lies.
Thanks in advance,
Poco

 

[Minty]

Unless your form is unbound as soon as the user moves from one field to the next the record is already saved.

There is a way around this but it is not really for beginners - see here https://support.microsoft.com/en-gb/kb/248011 and here http://www.access-programmers.co.uk/forums/showthread.php?t=261029

 

[James Deckert]

The easier way to make your Serial field to be required is to set it in the table design. Or to set the Validation Rule & Text in table design.

 

[Poco_90]

Minty, James,
Thanks for taking the time to reply to my question. I ended up changing the filed to be required in the table design, so it has crudely got me started.

I think James suggestion with a validation rule in the table design might be the easiest option for me.
Many thanks,
Poco