title: Runtime disable the datagridviewcombobox
body: <p>How do I change the following things of a <code>DataGridViewComboBoxColumn</code> at runtime:</p>
  
  <ol>
  <li>How do I set the first value of the combo box as default?  </li>
  <li>Disable combo box/make it read-only while showing the first value as default. Meaning to say, if I have 3 items in the combo-box it should show only the first item. (Either disable the combo box drop down, or change it to become a text box at runtime). </li>
  </ol>
  
  <p><strong>Reason:</strong><br>
  The reason I do that is because for my <code>Enum</code> I have <code>Status{New=1,Stop=2,Temp=3}</code>. When i want to register a student, the status is always set to <code>New</code>. So when I save, it will auto save the <code>Status = 1</code>.</p>