title: Cannot select the ComboBox item
body: <p>I have two Comboboxes where the second one is dependent upon the first one.</p>
  
  <p>When the SelectedIndexChanged event of the first Combobox fires then the second Combobox will be enabled.</p>
  
  <p>After the event, the second Combobox is enabled but I cannot select the ComboBox item.</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>I use Dev express Tools</p>
  
  <p>First Combo I load in Page_Load Event</p>
  
  <p>I use Server Side code:</p>
  
  <pre><code>protected void ASPxComboModule_SelectedIndexChanged(object sender, EventArgs e)
  {
      LoadSecondCombo();
      LoadSecondCombo.Focus();
  }
  </code></pre>
  
  <p>There is no problem in loading, but I'm unable to select 2nd combo item.</p>