...
 
    Private dt As New DataTable
    Private WithEvents BS As New BindingSource()
 
...
 
            BS.ResetBindings(False)
            BS.SuspendBinding()
            BS.DataSource = dt
 
            With TimeWindow ' die Properties für mein Steuerelement werden 
            ' gesetzt
                .DataBindings.Clear()
                .DataBindings.Add("TimeStartMin", BS, "start")
                .DataBindings.Add("TimeStart", BS, "start")
                .DataBindings.Add("TimeStop", BS, "stop")
                .DataBindings.Add("TimeStopMax", BS, "stop")
            End With
 
            With cbo ' mit der ComboBox wird durch die BindingSource bzw. 
            ' DataTable navigiert
                .DataSource = BS
                .DisplayMember = "Name"
                .ValueMember = "ID"
            End With
 
            BS.ResumeBinding()
            BS.ResetCurrentItem()

    Private Sub BS_CurrentItemChanged(ByVal sender As Object, ByVal e As _
      System.EventArgs) Handles BS.CurrentItemChanged
        If Not (BS.IsBindingSuspended) Then
            TimeWindow.Start() ' mein Steuerelement wird "gestartet"
        End If
    End Sub