I copied how to invoke Context menu on r-click for RadTreeView from your examples but instead Silverlight menu shows up when I run the solution.
My RadTreeView is in DockPanel->Grid->RadExpander->Border. Could this be a problem? What else can I check? Please look at the code below that defines ContextMenu as a child of RadTreeView:
<
telerikNavigation:RadTreeView SelectionMode="Extended" IsLineEnabled="True" ItemsOptionListType="CheckList" IsOptionElementsEnabled="True" IsRootLinesEnabled="True"
x:Name="treeMain" IsTriStateMode="True" Checked="treeMain_Checked" >
<telerikNavigation:RadContextMenu.ContextMenu>
<telerikNavigation:RadContextMenu x:Name="ContextMenu" ItemClick="ContextMenu_ItemClick" Opened="ContextMenu_Opened">
<telerikNavigation:RadMenuItem x:Name="mnuSearch" Header="Search" />
<telerikNavigation:RadMenuItem x:Name="mnuClearAll" Header="Clear" />
<telerikNavigation:RadMenuItem IsSeparator="True" />
<telerikNavigation:RadMenuItem x:Name="mnuAddSrchFields" Header="Add" />
<telerikNavigation:RadMenuItem x:Name="mnuRemoveSrchFields" Header="Remove" />
</telerikNavigation:RadContextMenu>
</telerikNavigation:RadContextMenu.ContextMenu>
<telerikNavigation:RadTreeViewItem Header="Search Assets" DefaultImageSrc="" IsExpanded="True" />
<telerikNavigation:RadTreeViewItem Header="My Saved Queries" DefaultImageSrc="" IsExpanded="False" />
</telerikNavigation:RadTreeView>