How to make the radtreeview's item expand?

[Jonathan]

Hi, I use databinding for the radtreeview itemsource, and it's easy to get the xmlelement of the radtreeview's item. I want to expand the readtreeview's item , how to do it when I only know the xmlelement?

Thanks

[Milena]

Hi Jonathan,

I'm not quite sure what do you mean. However, you can add IsExpanded property in your business class/ view model and bind it to the TreeViewItem via style. Then you can change it's status to IsExpanded when you need to. For your convenience I implement this approach in the attached project. Please take a look at it and let us know if this works for you. If not - please provide us more detailed information or modify the sent project to show us your scenario.  

Regards,
Milena
Telerik by Progress

[Jonathan]

Thank you Milena. I solve the problem with IsExpanded property and DataBinding.