title: ComboBox.SelectedText doesn't give me the SelectedText
body: <p>I am building a String and the code looks like</p>
  
  <pre><code>String status = "The status of my combobox is " + comboBoxTest.SelectedText
  </code></pre>
  
  <p>I am using WinForm in VS2010</p>
  
  <p>The result looks like</p>
  
  <blockquote>
    <p>"The status of my combobox is "</p>
  </blockquote>