I would like to suggest something very simple:
- why not in these cases (where you need to expand the entire TreeView) you just load the TreeView on the server without using the load on demand and multiple requests for this purpose - directly bind the TreeView or create the structure? And if the current conditions does not expect complete expand - you switch to the load on demand.
If this doesn't seem reasonable enough we will proceed with the requested. Please, let me know what do you think about that.
the Telerik team
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