title: Groupbox check for changes event
body: <p>I have a <code>DataGridView</code> and a <code>GroupBox</code> control containing a few <code>ComboBoxes</code>.<br>
  Depending on what is selected in the <code>ComboBoxes</code>, the elements in the grid changes. </p>
  
  <p>Is there a way to say </p>
  
  <pre><code>If (Something Changes Within The GroupBox)
  {
     //Update the grid
  }
  </code></pre>
  
  <p>(Without writing a <code>OnSelectedIndexChange</code> event for every boxes)<br>
  I don't want the code for the updating part, I just need an event or something I could use to check if a the value of a control has changed within the <code>GroupBox</code>.<br>
  Any Idea ?</p>
  
  <hr>
  
  <p><strong>Update</strong></p>
  
  <p>Ok I think I didn't explained it the right way.<br>
  Forget about the <code>ComboBox</code>. <br>
  Let's say I have a bunch of controls in a <code>GroupBox</code> is there a way to say :</p>
  
  <p>As soon as the value of one of the control changes, create an event.</p>