ios – 找不到合适的方法来覆盖RowsInSection xamarin

class CallHistoryDatasource : UITableViewsource
    {
        CallHistoryController controller;

        public CallHistoryDatasource (CallHistoryController controller)
        {
            this.controller = controller;
        }

        public overridE int RowSELEcted(UITableView tableView,int section)
        {
            return controller.Phonenumbers.Count;
        }
        //
        // Returns a table cell for the row inDicated by row property of the NSIndexPath
        // This method is called multiple times to populate each row of the table.
        // The method automatically uses cells that have scrolled off the screen or creates new ones as necessary.
        //
        public override UITableViewCell GetCell (UITableView tableView,NSIndexPath indexPath)
        {
            var cell = tableView.DequeueReusableCell (CallHistoryController.callHistoryCellId);

            int row = indexPath.Row;
            cell.TextLabel.Text = controller.Phonenumbers [row];
            return cell;
        }
    }

嗨,我正在尝试用Xamarin monotouch制作一个Helloworld应用程序,我正在接受这个错误.任何人都可以帮我解决这个问题吗？

谢谢