I am sorry to say but with the current implementation of the RadTreeList this could not be achieved. When you use the ExpandAllItems() method all the items of the RadTreeList will be expaned. Additionally you should note that if AllowPaging
is set to true
, the RadTreeList control renders a pager item (TreeListPagerItem
). It is always visible, no matter if the number of expanded items is larger than the page size. Each time a row is expanded/collapsed, the pager refreshes based on the number of expanded items.
the Telerik team
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