title: How to change the form while resizing less or more than specific width and height?
body: <p>Hello guys I want to build a scientific calculator using C# WPF. </p>
  
  <p>What I want to do is to change the form from simple calculator to scientific calculator by resizing the UI size less or more than a specific size(with specific width and height).</p>
  
  <p>Is there any articles or some examples about this feature?</p>
  
  <p>Thank you very much.</p>
  
  <p>I want to specify my idea:</p>
  
  <p>Like the calculator on IPhone, when I rotate the screen the calculator will be in scientific mode, so that's what I want for the windows program when I drag to resize the calculator, the mode will be changed.</p>