c# - Binding an observable collection to a context menu -

i trying make context menu show list of strings. app contains datagrid of people can edited,deleted , added group. have class studentgroup different groups person can added (one of members of studentgroup name). viewmodel retrieves full list of groups , puts inside observable collection. trying make context menu work such whenever user right clicks , hover on add user -> opens side menuitems contains observable collections's name string.

this have tried far looking similar questions on stackoverflow, hasn't worked me yet.

the xaml:

<datagrid.contextmenu>     <contextmenu allowdrop="true" itemssource="{binding entries}">         <menuitem header="edit" />         <menuitem header="delete"/>         <menuitem header="add user to">             <menuitem.itemtemplate>                 <datatemplate>                     <textblock text="{binding name}" />                 </datatemplate>             </menuitem.itemtemplate>         </menuitem>         </contextmenu> </datagrid.contextmenu> 

xaml code behind view:

private titleviewmode tvm=new titleviewmode; public welcome()     {         initializecomponent();         _grid1.contextmenu.datacontext = tvm;     } 

viewmodel

class titleviewmodel {     public observablecollection<studentgroup> entries {get;set;}     private list<studentgroup> sg1 { get; set;}     public titletviewmodel()     {         sg1 = getgroups();         entries = new observablecollection<studentgroup>(sg1);     }  } 

this should work

<menuitem header="add user to" itemssource="{binding entries}">     <menuitem.itemtemplate>         <datatemplate>             <menuitem header="{binding name}"></menuitem>         </datatemplate>      </menuitem.itemtemplate> </menuitem>