The OnClientNodeChecked client-side event occurs after the end user selects a checkbox using mouse or keyboard. The node checked status returned by the node get_checked() function has now changed to reflect the new value. The action can longer be canceled.

The event handler receives parameters:

1. The treeview instance that fired the event.

2. Event arguments with functions:

   • get_node() retrieves a reference to the clicked on node.

   • get_domEvent() retrieves a DOM event object of the node check.

The example below shows a message containing the text of a node and the checked state of its checkbox when checked/unchecked.

CopyASPX

<script type="text/javascript" language="javascript">

    function ClientNodeChecked(sender, eventArgs) {
        var node = eventArgs.get_node();

        alert("You have checked node " +
                node.get_text() +
                ". Current check state is: " +
                node.get_checked());
    }
</script>

<telerik:RadTreeView ID="RadTreeView1" runat="server" CheckBoxes="true" OnClientNodeChecked="ClientNodeChecked">
</telerik:RadTreeView>