title: Add "---Select" as first item in Combobox in windows form?
body: <pre><code>var query = (from c in db.tblGroups
               select new { c.GroupId, c.Name })
              .ToList();
  
  GroupcomboBox.DataSource = query;
  GroupcomboBox.DisplayMember = "Name";
  GroupcomboBox.ValueMember = "GroupId";
  </code></pre>
  
  <p>I am Binding my Combobox as Above, I need to add ---Select--- as first combobox item. Please suggest me with Code.</p>