c# - Reuse context menu -

i have created context menu (at moment) use items in treeview. have created treeitem class holds relevant information header, icon, children, execute target, etc. looks like:

<contextmenu datacontext="{binding placementtarget.datacontext, relativesource={relativesource self}}"              visibility="{binding showcontextmenu}"              itemssource="{binding contextmenu}">   <contextmenu.itemtemplate>     <hierarchicaldatatemplate itemssource="{binding children}">       <textblock text="{binding header}" />       <hierarchicaldatatemplate.itemcontainerstyle>         <style targettype="menuitem">           <setter property="command"                   value="{binding execute}" />           <setter property="icon"                   value="{staticresource cmicon}" />           <setter property="tooltip"                   value="{binding tooltip}" />         </style>       </hierarchicaldatatemplate.itemcontainerstyle>     </hierarchicaldatatemplate>   </contextmenu.itemtemplate>   <contextmenu.itemcontainerstyle>     <style targettype="menuitem">       <setter property="command"               value="{binding execute}" />       <setter property="icon"               value="{staticresource cmicon}" />       <setter property="tooltip"               value="{binding tooltip}" />     </style>   </contextmenu.itemcontainerstyle> </contextmenu> 

when used context menu in tree view, attached textblock in itemtemplate. want use same context menu different control. don't want copy same code different location , maintain multiple times, want reuse template. tried 2 things:

• i put context menu in resources of user control (just testing) , call this: <textblock text="{binding header}" contextmenu="{staticresource mycontextmenu}">. displayed, not closed , not move. not helpful anyway want use context menu on different user control.

• then put context menu inside control template in app.xaml: <controltemplate x:key="treecontextmenu" targettype="contextmenu">. , call this:

  <textblock.contextmenu>     <contextmenu template="{staticresource treecontextmenu}"/> </textblock.contextmenu> 

the program starts, when want open context menu, exception: 'contextmenu' cannot have logical or visual parent.

i have tried google solution, couldn't find helpful.

you trying create context menu inside context menu. remove controltemplate tag app.xaml , move x:key attribute directly contextmenu tag.

also, delete textblock.contextmenu , add contextmenu="{staticresource treecontextmenu}" attribute textblocktag.