Restrict listbox selection

[help4qv123]

Hi Friends,
I have a requirement , In list box by pressing ctrl we can select multiple values. So i want a restriction as user can select max up to 2 by pressing ctrl.

[alexandros17 · Accepted solution]

You can do something like this:

=If(GetSelectedCount(myField)>2, 'Error', myField)

but you will see the text "Error" only when you release the CTRL button

[help4qv123]

Ya Good...But I can see error mesg any other option....