TreeNode selection woes



I have a TreeView with nodes that are set to selection mode. I have
the SelectionNodeChanged event wired and it functions as expected.

The problem is this: When the user clicks a node I update a grid view
(think of clicking the inbox folder in hotmail which updates the
message view). I have implemented UpdatePanels so that when a tree
node is clicked only the gridview is updated. But if the user clicks
on the SAME node in succession the SelectionChangeNode event is not
fired but I still want to update the contents of the grid control.
How do I determine that a node has been clicked in succession? This
is driving me nuts. Why can't the TreeView just tell me that a node
has been clicked? Instead it only tells me when a different node has
been clicked.


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