WPF绘制五子棋盘

        public void DrawChessBoard()
        {
            canva.Height = 450;
            canva.Width = 450;
            canva.Margin = new Thickness(0, 0, 0, 0);
            for (int i = 0; i <= 15; i++)
            {
                DrawingLine(new Point(0, i * 30), new Point(450, i * 30));
                DrawingLine(new Point(i * 30, 0), new Point(i * 30, 450));
            }
            canva.IsEnabled = true;
            return;
        }
        private void DrawingLine(Point Sp, Point Ep)
        {
            LineGeometry linegemetry = new LineGeometry();
            linegemetry.StartPoint = Sp;
            linegemetry.EndPoint = Ep;

            Path mypath = new Path();
            mypath.Stroke = Brushes.Black;
            mypath.StrokeThickness = 1;
            mypath.Data = linegemetry;
            canva.Children.Add(mypath);
            return;
        }