Select/unselect all dropdown

[souma123]

Hi All, 

I have a dropdown list (week) with 52 entry, i want to add a check/uncheck All check box to make it easy to a user if he wants to select all the weeks , how can i do please?

[Sienna · Accepted solution]

You can't select multiple items in dropdown. You can do this with combobox. Simply add an toggle or checkbox and set the OnCheck property to 

UpdateContext({allSel: ["1","2","3","4","5","6","7","8"]})

and OnUncheck to

UpdateContext({allSel: []})

Now in your combobox set Item property to 

["1","2","3","4","5","6","7","8"]

and DefaultSelectedItems to

allSel