Why can disabled node can be unchecked?

[Ed Staffin]

Hi, I have a treeview as follows:

<telerik:RadTreeView ID="tvCC" Runat="server" CheckBoxes="True"
        Skin="Vista" TriStateCheckBoxes="True" CheckChildNodes="True" BorderStyle="Solid"
        BorderColor="Black" BorderWidth="1"  Height="350px" Width="400px" >
</telerik:RadTreeView>

In the code behind I disable a child node of a root node.
This prevents the user from checking or unchecking the specific node.
This is good. However, if I  uncheck or check the parent node the child still get's toggled even though it's disabled.
Anyway to prevent this client side?
Thanks ... Ed

[Princy]

Hello Ed,

You can set the 'Checkable' property of RadTreeView node as false when disabling that particular node which in turn disables to select the CheckBox of the child node.

C#:

RadTreeNode node = tvCC.FindNodeByText("Brisbane");//find the node
node.Enabled = false;
node.Checkable = false;

Thanks,
Princy.

[Ed Staffin]

Hi thanks for the reply, but that doesn't work.
They still need to be able to click on the parent.

Here's what I did as a work around. Cludgy, but works.

function DoOnClientNodeChecked(sender, eventArgs) 

{


   // basically this function serves to protect disabled nodes.

   // the problem comes in when a parent node of a disabled child node is unchecked.

   // in this case the control unchecks all child nodes even if they are disabled.

   // so, this forces disabled nodes back.

   var oNode;

   var i;

   var oAllNodes = eventArgs.get_node().get_allNodes();

   for (i = 0; i < oAllNodes.length; i++)

   {

       oNode = oAllNodes[i];

       if (!oNode.get_enabled())

           oNode.check();

   }

}

Thanks ... Ed