To check all child-nodes when a parent node has been checked, you need to subscribe to the AfterClientCheck event tat is fired right after a node has been checked.
Example:
| ASPX |
 Copy Code |
|
<script language=javascript>
function UpdateAllChildren(nodes, checked)
{
//In the client-side event handler, obtain a reference to the parent node. Then, check/uncheck all the child-nodes in the parent collection.
var i;
for (i=0; i<nodes.length; i++)
{
if (checked)
{
nodes[i].Check();
}
else
{
nodes[i].UnCheck();
}
if (nodes[i].Nodes.length > 0)
{
UpdateAllChildren(nodes[i].Nodes, checked);
}
}
}
function AfterCheck(node)
{
UpdateAllChildren(node.Nodes, node.Checked);
}
</script>
<rad:RadTreeView runat="server" CheckBoxes="True" AfterClientCheck="AfterCheck" />
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See Also