c# - Command parameter passing parent reference -

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i have wpf treeview , need reference of parent node in child node context. menu command. in below xaml, need pass reference of in member command parameter

xaml:

<datatemplate x:key="member">  <textblock text="{binding}" tag="{binding datacontext, relativesource={relativesource ancestortype=mylib:extendedtreeview}}">   <textblock.contextmenu>    <contextmenu>     <menuitem header="delete" command="{binding relativesource={relativesource ancestortype=contextmenu}, path=placementtarget.tag.deletemmebercommand}">      <menuitem.commandparameter>       <multibinding converter="{staticresource mutilvalueconverter}">        <binding path=".."/>         <binding />       </multibinding>      </menuitem.commandparameter>     </menuitem>    </contextmenu>   </textblock.contextmenu>  </textblock> </datatemplate> <hierarchicaldatatemplate datatype="{x:type a}" itemssource="{binding members}" itemtemplate="{staticresource member}"  <textblock text="{binding"}>   <textblock.contextmenu>    <contextmenu>     <menuitem header="delete" command="{binding relativesource={relativesource ancestortype=contextmenu}, path=placementtarget.tag.deleteacommand}" commandparameter="{binding}"/>    </contextmenu>   </textblock.contextmenu>  </textblock> </hierarchicaldatatemplate>   <treeview itemssource="{binding as}"/>

converter:

public class mutilvalueconverter : imultivalueconverter {     public object  convert(object[] values, type targettype, object parameter, cultureinfo culture)     {         return values;     }      public object[]  convertback(object value, type[] targettypes, object parameter, cultureinfo culture)     {         throw new notimplementedexception();     } }

if understand correctly, possibly invert whole thing:

publish command in datacontext , give instance of subdatacontext command parameter (this binding items)


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