public CommentEntry() { InitializeComponent(); Notes = new BindingList <Note>(DBAction.GetNotes()); this.MouseWheel += CommentEntry_MouseWheel; txtNoteText.MouseWheel += CommentEntry_MouseWheel; bs = new BindingSource { DataSource = Notes }; bs.PositionChanged += BindingSource_PositionChanged; bs.CurrentItemChanged += Bs_CurrentItemChanged; bs.ListChanged += Bs_ListChanged; navNotes.BindingSource = bs; BindProperties(); }