title: Push down control automatically not working
body: <p>Sometime ago I asked <a href="https://stackoverflow.com/questions/28055744/how-do-i-push-down-control">this</a> question. I get an answer and it worked fine at time. But now, I'm trying to do the same but isn't working. I have a <code>Form</code> and a <code>FlowLayoutPanel</code> setted in the same way as the answer but it isn't working. Both <code>Form</code> has <code>FLowLayoutPanel</code> has set <code>AutoSize</code> to true and <code>FlowDirection</code> set to <code>TopDown</code> but the form is growing vertically without pushing down the <code>progressBar</code> control and <code>label</code> itself. Here's what's like my form after click on button a couple of times(the button's code is the same as in the accepted question in the link I have linked):</p>
  
  <p><img src="https://i.stack.imgur.com/oHznQ.png" alt="enter image description here"></p>
  
  <p>What am I missing?</p>