Not write character in textfield

General
1

hello group, I need to make sure that no characters are inserted in a textfield, but I can’t disable it. so I wanted to write:
in KeyDown:

if key=chr(13) or key=chr(3) or key=chr(27) then
// Permetti l’inserimento dell’Invio
Return True
Else
// Impedisci l’inserimento di qualsiasi altro carattere
Return False
End If

but it doesn’t work. Why?

2

I think you have true and false the wrong way round.

3

Set the TextField ReadOnly ?

Do you know about the Label Control ?
Check if it meet your needs…


if key=chr(13) or key=chr(3) or key=chr(27) then
// Permetti l’inserimento dell’Invio
Return True
Else
// Impedisci l’inserimento di qualsiasi altro carattere
Return False
End If

Select the code, then press the image button.

4

It is better to write it like this:

Select Case  Asc ( key )
Case 13 , 10 ,   65
  Beep
Else
  beep
End Selec

t

5

Ok i solved:

if key=chr(13) or key=chr(3) or key=chr(27) then
// Permetti l’inserimento dell’Invio
return False
Else
// Impedisci l’inserimento di qualsiasi altro carattere
return True
End If

I had reversed true and false