Hi John,
Ok; what you are saying makes sense. But what puzzles me is why I don't get the error on my system?
I can change the code to your suggestion but first I would like to duplicate the problem on my side.
Thanks.
>Hi Dmitry,
>
>>> cControlSource = ALLTRIM( this.control_source )
>>> IF EVALUATE( cControlSource ) == OLDVAL( cControlSource )
>>> RETURN .T.
>>> ENDIF
>>>
>
>The parameters for OLDVAL are
>
>
OLDVAL(cExpression [, cTableAlias | nWorkArea])
>
>where cExpression would be your field name and cTablealias the cursor or table-
>
>So that to pass a controlsource like myalias.myfield you'd be looking to use getwordnum() or similar to peel out cTablealias and field name/s separately.
>
>
if evaluate(cControlsource)=iif("." $ cControlsource,oldval(getwordnum(cControlsource,2,"."),getwordnum(cControlsource,1,".")),oldval(cControlsource))
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
