To leran myself how to prgram with VC I tried to make a simple calculator.
One Input form, with three numeric input fields, NUM1, NUM2, NUM3. And one button 'Add', with the submit form action.
I defined the value of NUM3 as '@NUM1+@NUM2'.
But nothing happens. Isn't it that simple?
Where can I find I simple tutorial to start with?
IGNACIO VILLALBA MARCORA replied
The problem is the refresh, when the form is charged NUM3 has the value NUM1+NUM2 but is empty.
May be you should be hide the NUM3 and displayed in other form after push the button... other way would be use a "expresion box" (no "input field" ) in result field.
The best place to start with VC is http://help.sap.com/saphelp_nw04s/helpdata/en/43/395a596c8a1806e10000000a1553f6/frameset.htm