title: How to bind combobox with "Select Item" as the first item
body: <p>I have the following code to bind the combobox from the database table:</p>
  
  <pre><code>Public Sub FillComboBox(ByVal cboCombo As ComboBox, ByVal sSQL As String, ByVal strTable As String, ByVal strDisplayMember As String, ByVal strValueMember As String)
      Dim CN As New OleDbConnection
  
      Try
          With CN
              If .State = ConnectionState.Open Then .Close()
  
              .ConnectionString = cnString
              .Open()
          End With
  
          Dim da As OleDbDataAdapter = New OleDbDataAdapter(sSQL, CN)
          Dim dt As New DataSet
  
          da.Fill(dt, strTable)
  
          cboCombo.DataSource = dt.Tables(strTable).DefaultView
          cboCombo.DisplayMember = strDisplayMember
          cboCombo.ValueMember = strValueMember
      Catch ex As Exception
          MessageBox.Show(ex.Message)
          Debug.Print(ex.Message)
      Finally
          CN.Close()
      End Try
  End Sub
  </code></pre>
  
  <p>Since "Select Item" value is not part of the record from the table, how can I add it in the combobox?</p>