System.Windows.MetroGridHelper.PrepareGrid C# (CSharp) Method

        private static void PrepareGrid(Frame frame, Grid parent)
        {
            var brush = new SolidColorBrush(_color);

            _grid = new Grid();
            _grid.IsHitTestVisible = false;

            // To support both orientations, unfortunately more visuals need to
            // be used. An alternate implementation would be to react to the
            // orientation change event and re-draw/remove squares.
            double width = frame.ActualWidth;
            double height = frame.ActualHeight;
            double max = Math.Max(width, height);

            for (int x = 24; x < /*width*/ max; x += 37)
            {
                for (int y = 24; y < /*height*/ max; y += 37)
                {
                    var rect = new Rectangle
                    {
                        Width = 25,
                        Height = 25,
                        VerticalAlignment = VerticalAlignment.Top,
                        HorizontalAlignment = HorizontalAlignment.Left,
                        Margin = new Thickness(x, y, 0, 0),
                        IsHitTestVisible = false,
                        Fill = brush,
                    };
                    _grid.Children.Add(rect);
                    _squares.Add(rect);
                }
            }

            _grid.Visibility = _visible ? Visibility.Visible : Visibility.Collapsed;
            _grid.Opacity = _opacity;

            // For performance reasons a single surface should ideally be used
            // for the grid.
            _grid.CacheMode = new BitmapCache();

            // Places the grid into the visual tree. It is never removed once
            // being added.
            parent.Children.Add(_grid);
        }