CheckList box with in Invoke Code

Studio/Robot version: 2019.8.0

I’ve followed this guide to create a custom checkbox list in Uipath and Invoke Code

and I’m trying to insert a “Select/ Unselect All” checkbox and all items in “CheckListBox” below will change when I check or uncheck this CheckBox
Can someone please help with this?Checkbox_Selection.xaml (10.6 KB)

Hi @tonynguyenle

Have you tried using check activity

Ashwin S

Thanks AshwinS2! But I can’t solve it