title: How to add a right click context menu to Column Header for a WPF 4 DataGrid?
body: <p>I want the context menu for a DataGrid's column headers to be different than the rest of the cells. So using the regular ContextMenu property is not going to work. There is DataGrid.RowHeaderTemplate, but I can't find DataGrid.ColumnHeaderTemplate. </p>
  
  <p>Edit/Note: Columns are generated dynamically.</p>