[Solved] Having Context Menu targeting Tree View not operate unless node selected

[Walter Harris]

I am using the following: VS2008 Team Edition, the 3.5 TreeView Control and the 3.5 Context Menu Control

I have a TreeView Control on my page and a Context Menu control defined to target it (shown below).  I need the Context Menu to not appear unless there is a selected Node in the TreeView Control.  I know I can check for the selected node status in the code behind, but I don't want the menu to appear at all if a node is not selected.

I have thought about using a method to set the menu to enabled true/false, but am trying to not require a postback.  The other option might be to put some javascript in the page.  Anyone have a simple way other than one of these two ways or does the control already have an option to exactly this?

 

<div runat="server" id="left_pane">

 

<telerik:RadTreeView ID="tvCommodityCodes" runat="server" Skin="WebBlue"

 

CheckBoxes="true">

 

 

</telerik:RadTreeView>

 

 

<telerik:RadContextMenu ID="RadContextMenu1" runat="server" Skin="Web20"

 

 

ClickToOpen="true" OnItemClick="RadContextMenu1_ItemClick">

 

 

<CollapseAnimation Duration="1" /> 

 

<Items>

 

<telerik:RadMenuItem runat="server" Text="Add Entry" Value="Add" />  

 

<telerik:RadMenuItem runat="server" Text="Remove Entry" Value="Rem" />  

 

<telerik:RadMenuItem runat="server" Text="Edit Entry" Value="Edt" />  

 

<telerik:RadMenuItem runat="server" IsSeparator="true" />  

 

<telerik:RadMenuItem runat="server" Text="Save Entries" Value="Sav" />  

 

<telerik:RadMenuItem runat="server" Text="Abort Changes" Value="Abt" />  

 

</Items>

 

<Targets>

 

<telerik:ContextMenuControlTarget ControlID="tvCommodityCodes" />

 

 

</Targets>

 

 

</telerik:RadContextMenu>

 

 

</div>

I'm populating the tvCommodityCodes via

 

 

this.tvCommodityCodes.LoadXmlString(new StreamReader (CommodityEditor.Properties.Settings.Default.XMLInputFile).ReadToEnd());

 

 

 

[Atanas Korchev]

Hello Walter Harris,

I suggest you use the built-in context menu of RadTreeView which behaves exactly as you want to. Please check this example for a reference. You may also check this help topic.

Regards,
Albert
the Telerik team

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[Walter Harris]

Thanks Albert, I am now looking at that code. 

[Walter Harris]

That did the trick and it is working just fine.