UniDBGrid and PopUpMenu

[Astrolab]

I have UniDBGRid and UnipopUpMenu on the form. In grid I am calling popUpMenu by onContextClick

procedure CellContextClick(Column: TUniDBGridColumn; X, Y: Integer);

 var g:tuniDBGrid;
begin  
   copyPopUp.Popup(x,y);

   g:=tuniDBGrid(Column.Grid);
   copyPopUp.Popup (X, Y, g);
end;

In popUpMenu i have one menu item. How can i get a grid when i click on that menuItem.

In delphi DBGRid and popUpMenu i get it by popUpMenu.getParentComponent ,

how i can get it in UniGui.