how show in the list box just a value that is possible to mark?

[pascos88]

Hello

how I can show in the list box just a value that is possible to mark?

Regards

Pasquale

[sunny_talwar]

Select the option 'Hide Excluded' may be:

[pascos88]

Hi Sunny, thanks, but is not this option.

This hide the value not selected.

I need to show just the value that is possible to select.

Regerds

Paquale

[nagarjuna_kotha]

Do u mean , Do u have any null values in that. If i m wrong.

Explain clearly with sample data ?

-Nagarjun

[settu_periasamy]

Maybe the presentation tab -> LED Box?

[pascos88]

I have 2 list box

Month     day

Jan           01/01/2015 ... 31/01/2015

Feb           01/02/2015... 28/02/2018

If I chose Jan in the List box day I would see just the day of Jan e not also Feb.

Thanks a lot

[settu_periasamy]

May be try in listbox expression.. like

Aggr(Day,Month)

[stigchel]

Use an expression, <expression> is on the bottom of the field list in the listbox properties. For expression use something like

=Aggr(Only({<day>} day),day)