How to allow to make only one selection or no selection?

[retko1985]

Hello,

is here a way to do this?

I want the user to be able to make max 1 selection and also make him able to deselect.

Thank you.

[tresesco · Accepted solution]

May be using trigger like in attached.

[olivierrobin]

hello

maybe you can use the finctions gestselectedcount() to show the grpah

[jaibau1993]

If you have a list box, select only one field and then go to Properties, general sheet and check the option "Always one selected".

Hope it helps!

Jaime.