Having an option to select only one item from each group when using grouping

[Usman]

Dear Telerik team,

I would like to know that if it is possible to allow selecting a single item from each group when list box is in group mode.

[Dinko | Tech Support Engineer]

Hi Usman,

Thank you for your interest in our RadListBox control.

This behavior is not supported by the control out of the box. However, you can achieve it using custom code. In a few words, you can subscribe to the SelectionChanged event of the RadListBox and create custom logic that handles this scenario. 

I have created a sample project which demonstrates such customization. You can modify the approach so it fits in your application.

Regards,
Dinko
Progress Telerik