c# - Get right clicked item from context menu inside wrappanel inside itemscontrol -

i have itemscontrol has wrappanel inside of it. inside wrappanel have context menu. whole thing looks this:

<itemscontrol grid.row="0" grid.column="1" itemssource="{binding checkboxlist}" verticalalignment="stretch" horizontalalignment="stretch">         <itemscontrol.itemspanel>           <itemspaneltemplate>             <wrappanel>               <wrappanel.contextmenu>                 <contextmenu>                   <menuitem header="remove list">                     <i:interaction.triggers>                       <i:eventtrigger eventname="click">                         <cal:actionmessage methodname="removecheckbox">                           <cal:parameter value="$eventargs"/>                         </cal:actionmessage>                       </i:eventtrigger>                     </i:interaction.triggers>                   </menuitem>                 </contextmenu>               </wrappanel.contextmenu>             </wrappanel>           </itemspaneltemplate>         </itemscontrol.itemspanel>       </itemscontrol> 

but cant actual right clicked element this. source of event args clicked menu item of context menu. how can actual clicked element?