In a control on a form , the user is supposed to enter a text value.
By mistake It is possible that the user enter a text in the control and directly after that delete the entered value without putting another text value in it.
So we can have the situation that nothing is entered in the control, or something entered and after that deleted.
I such a case how do we check the control for the presence of a text value:
Do we use:
if me!txtArtnr = ""
If Isnull(me!txtArtnr) or IsEmpty(me!txtArtnr) or me!txtArtnr = ""