OnNodeClick gives Sys.ParameterCountException sometimes

[Chris]

I am using a rad tree to display a list of clickable menu items. But half of the time when i perform a click i get this:

1. Uncaught Sys.ParameterCountException: Sys.ParameterCountException: Parameter count mismatch. ScriptResource.axd:222
   1. Error$createScriptResource.axd:222
   2. Error$parameterCountScriptResource.axd:398
   3. Function$emptyMethodScriptResource.axd:52
   4. Sys$Net$XMLHttpExecutor$abortScriptResource.axd:4920
   5. Sys$WebForms$PageRequestManager$abortPostBackScriptResource.axd:296
   6. Sys$WebForms$PageRequestManager$_onFormSubmitScriptResource.axd:869
   7. Sys$WebForms$PageRequestManager$_doPostBackScriptResource.axd:484
   8. (anonymous function)ScriptResource.axd:47
   9. (anonymous function)
   10. a.RadTreeView._postbackScriptResource.axd:1151
   11. a.RadTreeView._postClickCommandScriptResource.axd:1443
   12. a.RadTreeView._clickScriptResource.axd:1669
   13. Telerik.Web.UI.EventMap._onDomEventScriptResource.axd:488
   14. (anonymous function)ScriptResource.axd:47
   15. g

I navigated in the console to RadTreeView._postClickCommand and the method "h._getHierarchicalIndex()" appears to be returning the correct parameters (ex 0:0:1)
I am using version 2012.1.411.35 of Web.UI and i have a RadAjaxManager and ScriptManager on the page. 

TreeViewCode:

<telerik:RadTreeView ID="treeFolders" runat="server" Skin="skyrouter" EnableEmbeddedSkins="false" EnableDragAndDrop="false" AllowNodeEditing="true"
                        OnNodeClick="treeFolders_NodeClick1" OnNodeDataBound="treeFolders_NodeDataBound"
                        OnNodeEdit="treeFolders_NodeEdit"  OnContextMenuItemClick="treeFolders_ContextMenuItemClick"
                        OnClientContextMenuItemClicking="onClientContextMenuItemClicking"
                        OnClientContextMenuShowing="onClientContextMenuShowing" OnClientNodeClicking="Tree_onNodeClicking"
                        OnClientMouseOver="Tree_onNodeMouseOver" OnClientMouseOut="Tree_onNodeMouseOut"
                        OnClientNodeEditStart="TreeNodeEditStart" OnClientNodeEditing="TreeNodeEditing">
                        <ContextMenus>
                            <telerik:RadTreeViewContextMenu ID="mailTreeViewContextMenu" Skin="skyrouter" runat="server"
                                meta:resourcekey="mailTreeViewContextMenu" EnableEmbeddedSkins="false">
                                <CollapseAnimation Duration="200" Type="OutQuint" />
                                <Items>
                                    <telerik:RadMenuItem runat="server" Text="New Folder" Value="NewFolder" ImageUrl="~/images/Communicate/Img/OutLook/12.gif"
                                        meta:resourcekey="RadMenuItem1" />
                                    <telerik:RadMenuItem runat="server" Text="Delete" Value="Delete" ImageUrl="~/images/Communicate/Img/OutLook/7.gif"
                                        meta:resourcekey="RadMenuItem2" />
                                    <telerik:RadMenuItem runat="server" Text="Rename" Value="Rename" PostBack="false"
                                        ImageUrl="~/images/Communicate/Img/OutLook/rename.gif" meta:resourcekey="RadMenuItem3" />
                                </Items>
                            </telerik:RadTreeViewContextMenu>
                            <telerik:RadTreeViewContextMenu ID="RadTreeViewContextMenu_Trash" Skin="skyrouter"
                                runat="server" meta:resourcekey="RadTreeViewContextMenu_Trash" EnableEmbeddedSkins="false">
                                <CollapseAnimation Duration="200" Type="OutQuint" />
                                <Items>
                                    <telerik:RadMenuItem runat="server" Text="New Folder" Value="NewFolder" ImageUrl="~/images/Communicate/Img/OutLook/12.gif"
                                        meta:resourcekey="RadMenuItem1" />
                                    <telerik:RadMenuItem runat="server" Text="Delete" Value="Delete" ImageUrl="~/images/Communicate/Img/OutLook/7.gif"
                                        meta:resourcekey="RadMenuItem2" />
                                    <telerik:RadMenuItem runat="server" Text="Rename" Value="Rename" PostBack="false"
                                        ImageUrl="~/images/Communicate/Img/OutLook/rename.gif" meta:resourcekey="RadMenuItem3" />
                                    <telerik:RadMenuItem runat="server" Text="Empty Trash" Value="EmptyFolder" PostBack="true"
                                        ImageUrl="~/images/Communicate/2DeletedItems.gif" meta:resourcekey="RadMenuItem4" />
                                </Items>
                            </telerik:RadTreeViewContextMenu>
                        </ContextMenus>
                        <CollapseAnimation Duration="100" Type="OutQuint" />
                        <ExpandAnimation Duration="100" />
                    </telerik:RadTreeView>

[Hristo Valyavicharski]

Hi Chris,

The provided code snippet is not enough to reproduce this behavior. I have created small sample based on it, but there was no such error. Please refer to this video, demonstrating the behavior at my end. 
The best would be if you can create a new support ticket and attach runnable sample with steps to reproduce.

Regards,
Hristo Valyavicharski
Telerik