title: Picturebox control is overlaping child form
body: <p>In an mdi parent form i display one image using PictureBox and i am trying to open form but image is overlaping the form.</p>
  
  <p>I am allready try BringToFront(), SendToBack(), TopMost but still not working.</p>
  
  <p><img src="https://i.stack.imgur.com/4DKoN.jpg" alt="enter image description here"></p>