public class MonthlyReportHanlder : IHttpHandler
    {

        #region IHttpHandler Members

        public bool IsReusable
        {
            get { return false; }
        }

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "image/jpeg";
            context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            context.Response.BufferOutput = false;

            string year = context.Request["Year"];
            string kpi1 = context.Request["kpi1"];
            string kpi2 = context.Request["kpi2"];

            var entities = new YearReport().GetData(year);

            var image = this.GenerateImage(entities, kpi1, kpi2);

            image.Save(context.Response.OutputStream, ImageFormat.Jpeg);
            image.Dispose();
        }

        #endregion

        private Image GenerateImage(IList<YearEntity> entities, string kpi1, string kpi2)
        {

            Image image = new Bitmap(w, h, PixelFormat.Format32bppArgb);

            Graphics g = Graphics.FromImage(image);
            g.SmoothingMode = SmoothingMode.AntiAlias;


            Rectangle rect = new Rectangle(0, 0, image.Width, image.Height);

            g.FillRectangle(b, rect);


            g.DrawRectangle(p, new Rectangle(0, 0, rect.Width - 1, rect.Height - 1));

            g.Dispose();

            return image;
        }
    }