title: ASP.Net Menu with Sub Menus
body: <p>I would like to create a menu in my web application. This menu has just needs to be vertical, and be able to operate something like this:</p>
  
  <p><img src="https://i.stack.imgur.com/AFgkw.png" alt="enter image description here"></p>
  
  <p>It doesn't need to be a pop up menu or anything. Just a static menu that sits on the side of the page and allows you to browse through submenus as well. I am new to asp.net and not sure if such a control exists or even what it would be called. Could someone asit me in my doing this? Does such a control exist or do I need to create it? </p>