title: Is there any way to change the background color of the ComboBox control with DropDownList in Windows Forms
body: <p>Is there any way to change the background color of the <code>ComboBox</code> control with <code>DropDownStyle = DropDownList</code> in Windows Forms?</p>
  
  <p>If I just do</p>
  
  <pre><code>this.comboBox.BackColor = Color.Red;
  </code></pre>
  
  <p>nothing changed.</p>
  
  <p>I need to highlight this <code>ComboBox</code> when the user doesn't choose any item (I can't provide the default item in my case).</p>
  
  <p>Thanks in advance.</p>