You are right that a boolean can do it and this is what I resorted to in the end.
It leaves offcourse the ERROR message which would let me know far earlier that some values are not permitted in a string variable, if I get this right?
You are right that a boolean can do it and this is what I resorted to in the end.
It leaves offcourse the ERROR message which would let me know far earlier that some values are not permitted in a string variable, if I get this right?