title: C# contain child form in parent window
body: <p>I have a parent mdi window that has two child windows that you can open and close. The parent starts as maximized and I want to keep the children from crossing the boundaries of the parent so the children are 100% on screen at all time. </p>
  
  <p>The parent(mdi) is maximized and I want the children(window forms) window to stay on the screen and not be able to be dragged outside the monitor. Basically how to stop the children from being able to be dragged off screen.</p>
  
  <p>Any thoughts?</p>