title: Auto expand the window by pressing a button
body: <p>I am using “Microsoft Visual Studio 2010” and C# language. My user interface look like this(before user click the <code>Advance</code> button):
  <img src="https://i.stack.imgur.com/0pWHo.jpg" alt="enter image description here"></p>
  
  <p>If user click <code>Advance</code> button, I want it to show the rest of the window as shown in the picture bellow:</p>
  
  <p><img src="https://i.stack.imgur.com/Y3FJp.jpg" alt="enter image description here"></p>
  
  <p>Can you please tell me how can have all these information hidden till the user click the <code>Advance</code> button? How can I have a smaller window first, as shown in the first figure. And when the user press the <code>advance</code> button, it will expand and show the rest.
  If you can show me with details, I would really appreciate it</p>