c# - Bind Header of WPF ContextMenu -

i had problem treeview-binding , contextmenu here: selected treeviewitem null

now i'm having problem: have contextmenu

<treeview.contextmenu>     <contextmenu x:name="mycontext" itemssource="{binding occontext}" displaymemberpath="text"/> </treeview.contextmenu> 

(the image shows how contextmenu looks like, don't mind tabitem...).

as can see, it's contetmenu, no menuitem! if user clicks on close, want in viewmodel (raise command?). i'd know button/menu clicked. amount of menus dynamically, since it's itemssource being binded.

this viewmodel:

private observablecollection<t_antwort> _occontext; public observablecollection<t_antwort> occontext {         {         if (_occontext == null)             _occontext = new observablecollection<t_antwort>();         return _occontext;     }     set     {         _occontext = value;         raisepropertychanged(() => occontext);     } } 

so want bind contextmenu (the "items" close , closeotherthankthis) viewmodel, when user clicks on 1 of them, want access them in viewmodel. means don't want bind them 1 one, want somehow event (contextmenuitemclicked (?)) being called , use in viewmodel.

btw. using menuitem under contextmenu create "menu folder", be

" " -> close

" " -> closeotherthankthis

and don't want this.

edit: i'm getting item this:

    private void mycontext_previewmousedown(object sender, mousebuttoneventargs e)     {         system.windows.controls.primitives.menubase s = sender system.windows.controls.primitives.menubase;         itemcollection ic = s.items;         t_antwort selecteditem = (t_antwort)ic.currentitem;     } 

is there possibility selected item binding?

don't know if have tried it, there's placementtarget context menu, gives object contains context menu.

in 1 project had, made this:

 <menuitem ...    visibility="{binding relativesource={relativesource mode=findancestor,ancestortype={x:type contextmenu}},path=placementtarget.selecteditem