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Item Type: NewsGroup Date Entered: 4/12/2006 2:06:15 PM Date Modified: Subscribers: 0 Subscribe Alert
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pooh2006
Asp.Net User
treeview!4/12/2006 2:06:15 PM

0/0

i have asp.net server side treeview with PopulateNodesFromClient="true" , EnableClientScript="true" and OnTreeNodePopulate="tree_TreeNodePopulate", it includes a treenode with Expanded="False" and PopulateOnDemand="True" when user expand it for first time, browser call javascript:TreeView_PopulateNode(... to recieve node data and update tree without postback the page, when TreeNodePopulate event fired on server e.g i add 5 nodes.

now if certain event done on client side and i want a call to the server to (update data of, remove, set order of) certain node from 5 nodes or modify new node to them(passing its data to the server), then update client side.

how can i do something similar to that, or its better to use client side treeview
dannychen
Asp.Net User
Re: treeview!4/12/2006 9:27:12 PM

0/0

I don't think you can modify those nodes without doing a full postback first.  The way PopulateOnDemand works is that it calls into TreeNodePopulate to get a preview of what the nodes in the tree will become and how to render them.  But after a postback, TreeNodePopulate is called again to create the nodes and actually add them to the Tree. 

Until you do a full postback, the TreeView will appear as to not have the nodes that were added by the TreeNodePopulate call.

--
Danny

disclaimer: Information provided is 'as is' and conveys no warranties or guarantees.
dirc
Asp.Net User
Re: treeview!5/9/2006 1:16:57 PM

0/0

There is always Atlas... I'm sure you should be able to do this... but don't ask me how.... yet!
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