title: Construct a tree using arraycollection
body: <p>How can we construct like lynda course structure in flex using tree which having data provider a array collection ? Inside array collection i have two arrays also. I need the structure as per the lynda course preview. Can anyone help me out ? Please Refer the lynda course structure.</p>
  
  <p>Refer the link -- <a href="http://www.lynda.com/Photoshop-tutorials/Design-Web-Getting-CSS-from-Photoshop/151161-2.html" rel="nofollow noreferrer">http://www.lynda.com/Photoshop-tutorials/Design-Web-Getting-CSS-from-Photoshop/151161-2.html</a></p>
  
  <p>Just like the screens shot </p>
  
  <p><img src="https://i.stack.imgur.com/GAvBp.jpg" alt="enter image description here"></p>