As Serrin suggested, your issue is similar to the one described in this post:
Before the items are displayed i.e. their parent is expanded, they are not generated. So, if you need to select a child node programatically, you'll have to first expand the parent node and listen for the ItemContainerGenerator.StatusChanged
event. In the event handler you should check if the status is "ContainersGenerated"
and then select the node you want. Before the ItemContainerGenerator
status becomes "ContainersGenerated"
you won't be able to select the child node. Let me know if this solves your issue.
the Telerik team
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