You can use the AfterClientCheck client-side event to accomplish the task.
Example:
| ASPX |
 Copy Code |
|
<script language=javascript>
function AfterCheck(node)
{
if (node.Checked && node.Parent != null)
{
for (var i=0; i<node.Parent.Nodes.length; i++)
{
if (node.Parent.Nodes[i] != node)
{
node.Parent.Nodes[i].UnCheck();
}
}
}
}
</script>
...
<rad:RadTreeView runat="server" CheckBoxes="True" AfterClientCheck="AfterCheck" /> |
 |
Note that this sample code makes sure only one checkbox per node child is selected - thus resembling radio-buttons. True radiobuttons will not be displayed. |