When TreeView is defined as static structure, or dataSource parameter is array type, expand method works correctly. But if items are bind by Kendo dataSource object the expand method works only if tree node was previously expanded "manually". This issue have consequence also for append method - if we use it to add item to "not-expanded" node it will destroy all child items for this node.
I've added simple example of this issue.
regards,
Piotr
I've added simple example of this issue.
regards,
Piotr