do you have an example which demo treeview, load on demand, refresh treeview with timer

[Zhengmao]

Hi

do you have treeview with demostrate treeview loaded from sql, some child node load on demand, refresh treeview from sql and keep expanded state for the node, and node click to display a gridview?

[Nikolay]

Hello Zhengmao,

Please refer to the following examples:

Load On Demand Server Side

Server-side events (you can use the NodeClick server event to display/update a gridview)

The expanded state of the nodes is persisted after postback by default.

Regards,
Nick
the Telerik team

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[Zhengmao]

the example only for load on demand, do you have treeview which needs to refresh itself every several minutes by using Microsoft AJAX timer and the nodes whose added on flying can toggle NodeClick event?

[Zhengmao]

I have added AJAX timer to FileBrowser example, it seems work now, I can use timer to trigger treeview refresh.