title: How to keep the default column header popup menu on devexpress?
body: <p>I have added a right click popup menu on my grid content. This popup also shows when I right click the grid header, however, I want to keep the default column header popup menu.</p>
  
  <p>My right menu code is like this:</p>
  
  <pre><code>protected override void RightClickMenu()
  {
      this.rightClickContextMenu = new ContextMenu();
  
      this.rightClickContextMenu.MenuItems.Add("MY CLASSES", new System.EventHandler(myclasses_Click));
      this.rightClickContextMenu.MenuItems.Add("MY BOOK LISTS", new System.EventHandler(booklists_Click));
  
      this.gridView.PopupMenuShowing += gridView_PopupMenuShowing;
  }
  </code></pre>
  
  <p>Does anyone have any idea what I should add in my code?</p>