The TreeView control works fine in the page. However, it does not work in the Popup.

What confuses me is that the node expand and collapse works for TreeView even in the popup, but not the Contextmenu
 

To understand more about this, I added the alert() in the onClientContextMenuShowing to show the property values. First, I get the menu object:

treeNode.get_contextMenu()

It shows that enable state is "undefined" and visible is false. (it displays correctly if NOT in popup).
So I add these two lines:

menu.set_enabled();
menu.show(evt);

It still does not work.

What I don't understand is that same code works in the non-popup scenario.

I need help.

Here is the code:

<asp:ScriptManager ID="sm" EnablePageMethods="true" runat="server" ></asp:ScriptManager>
<telerik:RadEditor ID="htmlEditor" runat="server" OnClientLoad = "OnClientLoad"
         AllowScripts="True" Width="100%" Height="500" Skin="Vista" EditModes="Design,Html"  >
 <Tools>
                <telerik:EditorTool Name="btnSave" Text="Save" ShowIcon="false" showText="true" />
                <telerik:EditorSeparator Visible="true" />

  <telerik:EditorToolGroup>
   ..................
  </telerik:EditorToolGroup>
  </Tools>
</telerik:RadEditor>
 
<asp:Panel ID="pnlTemplateSave" Wrap="false" style="background-color:White;" runat="server">
<asp:UpdatePanel ID="updpnlSave" runat="server" UpdateMode="Conditional" >      
<ContentTemplate>
            <telerik:RadTreeView ID="RadTreeView2" MultipleSelect="false" AllowNodeEditing="true" runat="server" Height="300px"
                OnClientContextMenuShowing="onClientContextMenuShowing"
                OnClientContextMenuItemClicking="onClientContextMenuItemClicking"
                OnContextMenuItemClick="RadTreeView2_ContextMenuItemClick"
                OnNodeExpand="RadTreeView2_NodeExpand"
                OnNodeEdit="RadTreeView2_NodeEdit"
                Skin="Vista" >
                <ContextMenus>
                    <telerik:RadTreeViewContextMenu ID="RootFolderContextMenu" runat="server">
                        <Items>
                            <telerik:RadMenuItem Value="New" Text="New Folder" ></telerik:RadMenuItem>
                        </Items> 
                        <CollapseAnimation Type="none" />            
                    </telerik:RadTreeViewContextMenu>
                    <telerik:RadTreeViewContextMenu ID="ChildFolderContextMenu" runat="server">
                        <Items>
                            <telerik:RadMenuItem Value="New" Text="New Folder" ></telerik:RadMenuItem>
                            <telerik:RadMenuItem Value="Rename" Text="Rename Folder" PostBack="false"></telerik:RadMenuItem>
                            <telerik:RadMenuItem Value="Delete" Text="Delete Folder" ></telerik:RadMenuItem>          
                        </Items>           
                        <CollapseAnimation Type="none" />
                    </telerik:RadTreeViewContextMenu>
                    <telerik:RadTreeViewContextMenu ID="FileContextMenu" runat="server">
                        <Items>
                        </Items>           
                        <CollapseAnimation Type="none" />
                    </telerik:RadTreeViewContextMenu>
                </ContextMenus>
            </telerik:RadTreeView>          
            <ajaxToolkit:ModalPopupExtender ID="mpeTemplateSave" runat="server"
                                TargetControlID="btnSave"
                                BehaviorID="mpeTemplateSaveBhvr"
                                PopupControlID="pnlTemplateSave"
                                PopupDragHandleControlID="tblTemplateSave"                                                  
                                CancelControlID="btnCancel"                               
                                BackgroundCssClass="ext-el-mask" />

            </ContentTemplate>
            </asp:UpdatePanel>
        </asp:Panel>

<script type="text/javascript">

Telerik.Web.UI.Editor.CommandList["btnSave"] = function(commmandName, editor, args) {
                var mpe = $find('mpeTemplateSaveBhvr');
                if (mpe)
                    mpe.show();
            }

function onClientContextMenuShowing(sender, args) {
                var treeNode = args.get_node();
                var evt = args.get_domEvent();
                treeNode.set_selected(true);
                if (treeNode) {
                    var menu = treeNode.get_contextMenu();
                    if (menu) {
                        menu.set_enabled();
                        alert(menu.get_enabled());
                        menu.show(evt);
                        alert(menu.get_enabled() + "  " + menu.get_visible());
                    }

}
</script>

protected void RadToolTipManager1_AjaxUpdate(object sender, Telerik.Web.UI.ToolTipUpdateEventArgs e)

{

Control ctrl = Page.LoadControl("~/UserControls/PersonalDetails.ascx");

e.UpdatePanel.ContentTemplateContainer.Controls.Add(ctrl);

PersonalDetails oPersonalDetails = (PersonalDetails)ctrl;

oPersonalDetails.Initial(

int.Parse(e.Value), 0, "", false);

}

protected void RGGP_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)

{

BaseClass.

PeopleCareTeam oPeopleCareTeam = (BaseClass.PeopleCareTeam)e.Item.DataItem;

if (e.Item.ItemType == Telerik.Web.UI.GridItemType.AlternatingItem || e.Item.ItemType == Telerik.Web.UI.GridItemType.Item)

{

RadToolTipManager1.TargetControls.Add(e.Item.ClientID, oPeopleCareTeam.LinkedPeopleID.ToString(),

true);

}

}

What shall I do to get refresh target control?

Regards,

Duy