title: Visual Basic combobox with mysql
body: <p>I have this VB code that populates a combobox with data from a MySQL table</p>
  
  <pre><code>Dim sStmt As String = "SELECT sequence, name FROM product_categories"
              Dim cmd As New MySqlCommand(sStmt, sqlcon)
  
              Dim da As MySqlDataAdapter = New MySqlDataAdapter(cmd)
              Dim dt As New DataTable("product_categories")
              da.Fill(dt)
  
              If dt.Rows.Count &gt; 0 Then
                  category.DataSource = dt
                  category.DisplayMember = "name" 'What is displayed
                  category.ValueMember = "sequence" 'The ID of the row
              End If
  </code></pre>
  
  <p>what would be the easiest way to add an option at the top of the list above all the data from the MySQL table to say none also with a value of none?</p>