I'm the root node

obout.com ASP TreeView Fast Easy Links & Notes since 1998 First child This is nr1 This is nr2 This is nr3 Last one Final one Second child Third child

This example demonstrate how to use the OnNodeExpand and OnNodeCollapse events.

The OnNodeExpand event is triggered when a node is expanded,
and the OnNodeCollapse event is executed when a node is collapsed.

The events are available:
- on client side - you can execute a javascript action when a node is expanded/collapsed
- on the server side - you can make a server-side processing (for example to update a database)


You can read more about the events of the ASPTreeView here

Here you'll find a nice tutorial about how to use the server-side events to update
a database (using 3 of obout's components: ASPTreeView, Postback4 and TreeDB)