title: Form with 2 datagridviews, how to mantain their proportion when the form is resized?
body: <p>I have a form with 2 group boxes and in each one datagrid with 3 buttons. I tried using anchor and docking and it works but not as I would like. I want to mantain the proportion of form space that is occupied by each groupbox. So when I resize the form it shoud look similar to as it looks now. 
  From what I could see the anchor resizes right groupbox as much as possible and the left one is resized only to the left border of the right groupbox.
  Any help?
  <a href="https://i.stack.imgur.com/7OkrA.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7OkrA.jpg" alt="enter image description here"></a></p>