System.Drawing.Drawing2D.HatchBrush.HatchGrid C# (CSharp) Method

        protected void HatchGrid(CGContext context)
        {
            var hatchSize = getHatchWidth (hatchStyle);
            var lineWidth = getLineWidth (hatchStyle);

            initializeContext(context, hatchSize, false);

            /* draw background */
            drawBackground (context, backColor, hatchSize, hatchSize);

            /* draw lines in the foreground color */
            context.SetStrokeColor(foreColor.ToCGColor());
            context.SetLineWidth(lineWidth);
            context.SetLineCap(CGLineCap.Square);

            hatchSize -=HALF_PIXEL_X;
            float yoffset = 0;

            if (hatchStyle == HatchStyle.DottedGrid)
            {
                yoffset = 1;
                nfloat[] dash = new nfloat[] { 1, 1};
                context.SetLineDash(2,dash);

            }

            /* draw a horizontal line */
            context.MoveTo(0,yoffset);
            context.AddLineToPoint(0,hatchSize);
            context.StrokePath();
            /* draw a vertical line */
            context.MoveTo(0,hatchSize);
            context.AddLineToPoint(hatchSize, hatchSize);

            context.StrokePath();
        }