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How to disable context menu in node with no child

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Santanu
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Santanu asked on 24 Oct 2015, 09:51 AM

Hi

 I have a tree-view control which populates the data from database, On that tree-view I also have a context menu Now I want to make viable off of one menu on the context menu if the node is last node (means no more child node). Given bellow the is rad tree:

 

<telerik:RadTreeView ID="RadTreeView1" runat="server" Width="90%" >
                                                    <DataBindings>
                                                        <telerik:RadTreeNodeBinding Expanded="True" />
                                                    </DataBindings>
                                                   <ContextMenus>
                                                   <telerik:RadTreeViewContextMenu ID="MainContextMenu" runat="server">
                                                        <Items>
                                                            <telerik:RadMenuItem Value="CreateNewTeam" Text="Create New Team" ImageUrl="../../../../image/RadControls/Grid/Skins/Default/SinglePlus.gif"></telerik:RadMenuItem>
                                                            <telerik:RadMenuItem Value="AddUserUnderThisTeam" Text="Add User" ImageUrl="../../../../image/RadControls/Grid/Skins/Default/Insert.gif"></telerik:RadMenuItem>
                                                        </Items>
                                                    </telerik:RadTreeViewContextMenu>
                                                   </ContextMenus>
                                                </telerik:RadTreeView>

  

I want to disable AddUserUnderThisTeam if the node is the last node (no more child)

Can anyone help on this.

 

Regards

Santanu

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Nencho
Telerik team
answered on 28 Oct 2015, 03:03 PM
Hello Santanu,

In order to disable certain item from the ContextMenu, base on the node, over which it is showing, you can handle the OnClientContextMenuShowing client-side event of the RadTreeView and implement the following functionality:

  <script type="text/javascript">
            function OnClientContextMenuShowing(sender, args) {
                if (args.get_node().get_nodes().get_count() == 0)
                    menu.findItemByValue("AddUserUnderThisTeam").disable();
         
            }
</script>


Regards,
Nencho
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Nencho
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