title: How to force a user to take a suggested entry into a ComboBox?
body: <p>I want a user to select a value from a ComboBox. Entries <em>have to be suggested</em> at user's text input.</p>
  
  <p>Do I have to use events to enforce a <code>System.Windows.Forms.ComboBox</code> to contain a value from its own <code>DataSource</code>?</p>
  
  <p><strong>Example:</strong> Entries have to be suggested to the user... If I write "CO", the combo should suggest "CONGO" and "COLOMBIA", but only one of those values should be entered by the user. The user should not introduce "COfdfgdfg" or any random string. </p>
  
  <p>Thanks! </p>