class DailyPlanTest : DayPilotCalendar
        {
            CalendarContext dc = new CalendarContext();
            private int EventsCount;
            private class HeaderHelper
            {
                public int ID;
                public DateTime Start;
                public DateTime End;
            }

            private HeaderHelper GetHeader(int id)
            {
                List<HeaderHelper> temp = GetHeaders();
                HeaderHelper header = temp.Find(x => x.ID == id);
                return header;
            }

            private List<HeaderHelper> GetHeaders()
            {
                List<HeaderHelper> headers = new List<HeaderHelper>();
                List<CalendarEventViewModel> temp = GetEvents();
                for(int i = 0; i < temp.Count; i++)
                {
                    headers.Add(new HeaderHelper { ID = i + 1, Start = temp[i].Start, End = temp[i].End });
                }
                return headers;
            }

            private List<CalendarEventViewModel> GetEvents()
            {
                List<CalendarEventViewModel> temp = (from e in dc.Events
                                                    where !((e.End <= VisibleStart) || (e.Start >= VisibleEnd)) && e.Aktywny == true
                                                    orderby e.Start
                                                    select new CalendarEventViewModel
                                                    {
                                                        EventID = e.EventID,
                                                        Start = e.Start,
                                                        End = e.End,
                                                        Email = e.Email,
                                                        IloscOsob = e.IloscOsob,
                                                        RealIloscOsob = e.RealIloscOsob,
                                                        Osoba = e.Osoba,
                                                        Telefon = e.Telefon
                                                    }).ToList();
                return temp;
            }
            protected override void OnInit(InitArgs e)
            {
                EventsCount = GetEvents().Count;
                DayBeginsHour = 1;
                DayEndsHour = EventsCount;
                Update(CallBackUpdateType.Full);
            }

            protected override void OnFinish()
            {
                if (UpdateType == CallBackUpdateType.None)
                {
                    return;
                }

                DataIdField = "EventID";
                DataStartField = "Start";
                DataEndField = "End";
                DataTextField = "Opis";

                Events = GetEvents().AsEnumerable();
            }

            protected override void OnCommand(CommandArgs e)
            {
                switch (e.Command)
                {
                    case "refresh":
                        Update(CallBackUpdateType.Full);
                        break;
                    case "refreshSingle":
                        Update(CallBackUpdateType.EventsOnly);
                        break;
                    case "navigate":
                        StartDate = (DateTime)e.Data["day"];
                        DayEndsHour = GetEvents().Count;
                        Update(CallBackUpdateType.Full);
                        break;
                }
            }
            protected override void OnBeforeTimeHeaderRender(BeforeTimeHeaderRenderArgs e)
            {
                int id = e.Start.Hours;
                HeaderHelper temp = GetHeader(id);
                if (temp != null)
                {
                    e.Html = String.Format("{0}<br/>{1}", DayPilot.Web.Mvc.Utils.TimeFormatter.GetHourMinutes(temp.Start, TimeFormat.Clock24Hours), DayPilot.Web.Mvc.Utils.TimeFormatter.GetHourMinutes(temp.End,TimeFormat.Clock24Hours));
                }
                else
                {
                    e.Html = "Unknown Block.";
                }
            }
        }