title: How to add sub menu items in contextmenustrip using C#4.0?
body: <p>I have one contextmenustrip control associated with treenode. I have created one menu item in contextmenustrip manually in the form itself(for example named as "Assign"). </p>
  
  <p>Now I want to add sub menu items whenever user clicks this Assign item, it will create a list of users name as a sub menu item with checked or unchecked option.</p>
  
  <p>For example, once user clicked Assign then I want to show the user name dynamically. </p>