How to access child TreeViewItemAdv from a TreeViewItemAdv

[Jackdoh]

I'm trying to create a selection tree. Whenever a button in a parent node is clicked, the children nodes should all be selected.
My problem is i can't find the containers of the children nodes (TreeViewItemAdv collection) from a parent TreeViewItemAdv

I can manually get a container by calling
ParentNode.ItemContainerGenerator.GetContainerFromItem(childData)

But there's another problem, if the ParentNode is collapsed, the child containers haven't been instantiated. Setting ParentNode.IsExpanded = true does not synchronously generate the item containers as I expected.

How do I solve this problem?
Thank you

[Prabhu P]

Hi Jackdoh,

Thank you for your interest in Syncfusion products.

We have a method named as AddNodeToSelectedItems() for selecting one or more nodes from the Treeview children collection. We have created a simple sample with all your requirement. Please find the sample from the link given below.

http://files.syncfusion.com/support/Tools.WPF/7.3.0.20/F89977/main.htm

Hope this sample will meet requirement. Please let us know if you have any other further queries.

Thanks,
Prabu