Thank you for the detailed description.
Firstly, can you please verify whether the IsVirtualizing
property of RadTreeView on your end is set to True
? Also, depending on the specific requirement you can set the VirtualizationMode to Recycling or Hierarchical. More information on this matter can be found in the UI Virtualization
topic. Please also note, that RadTreeView supports Load on Demand
from which you can benefit.
As for the logged error you are experiencing, it is a binding failure. Please, take a look at the How To Debug Data Binding Issues in WPF
blog post, as this is a common topic for the framework. Of course, there are various other resources on it that can be found over the net.
I hope this helps.
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