Hello, Unfortunately, in the WPF designer, that option is not available. We have added that task to our to-do list. Thank you. #9550 Hello, Thank you for the reply. I'm wondering, how can I achieve that effect using the code in the events? Is it possible? I would like to uncheck some items of the l...

Max Shamanov wrote: ↑Fri Mar 11, 2022 1:09 pm Hello,

You can use the properties Checked in your variable and set to false.

Thank you.

Why this option does not appear for me?
Version 2022.3.4 from 02.08.2022, WPF v2, .NET 4.5.1
Thank you.