Question : Validate Month & Year Field on Form

On a form, I have a PO Date formatted MM/DD/YYYY; on the same record one must choose a date from a combo box and that date needs to be either in the same MONTH/YEAR as the PO date field or later. How do I write a Validation Rule for this? Thanking you in advance!

Answer : Validate Month & Year Field on Form

I would put something like this in the form's BeforeUpdate event...


If Me!ThatComboBox < DateSerial(Year(Me!PO_Date), Month(Me!PO_Date), 1) Then
    MsgBox "Invalid date", vbCritical, "No soup for you!"
    Me.ThatComboBox.SetFocus
    Cancel = True
End If