title: C# Panel with Grid/Overlay
body: <p>Hi I would like to implement a control for a small game in c#, where the user can click on a panel and draw a path through a labyrinth. After that I want to transmit the coordinates of each "point" that was crossed on the path somewhere.</p>
  
  <p>In order to do that I tried to implement some kind of grid, where each piece has the same size. I then wanted to create some kind of overlay, so that the user can click on the grid, which then turns into green and shows the way the user chose.</p>
  
  <p>I made a small example below which I hope, explains what i mean by that:</p>
  
  <p><img src="https://i.imgur.com/rFAqHLp.jpg?1" alt="labyrinth"></p>
  
  <p>My problem is I am not particular skilled with panels and graphics in general and hoped someone here might have some kind of source or tutorial to accomplish what I want to do.</p>
  
  <p>Thanks in advance!</p>