Yes - the LoadOnDemand event should be fired with the node is expanded from IsExpanded property and from ExpandAll method.
I just double checked that the LoadOnDemand
event is fired when the IsExpanded
property is set to true and when the node is expanded from the ExpandAll()
method. I checked that with the latest version that we just released - can you please download it and give it a try.
For your scenario you should work with the ItemContainerGenerator class and to expand the nodes once their parent is generated. Otherwise you will not have an access to the nodes - because of the UI vitualization.
An overview about how to work with the ItemContainerGenerator is available on this online demo:
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