I'm using the calendar on week view. All is well until I add ann appointment, it adds it fine, and renders great. However the CPU utilisation goes to 100% and stays there... his the init on the control..

[code]
this._calendar.AllowInplaceCreate = false;
this._calendar.AllowInplaceEdit = false;
this._calendar.CurrentView = MindFusion.Scheduling.WinForms.CalendarView.WeekRange;
this._calendar.Date = new System.DateTime(2007, 7, 22, 0, 0, 0, 0);
this._calendar.DateTimeFormat = ((System.Globalization.DateTimeFormatInfo)(resources.GetObject("_calendar.DateTimeFormat")));
this._calendar.EndDate = new System.DateTime(2007, 8, 29, 0, 0, 0, 0);
this._calendar.ItemSettings.HeaderSize = 20;
this._calendar.ItemSettings.MoveBandSize = 5;
this._calendar.ItemSettings.Padding = 0;
this._calendar.ItemSettings.ResizeBandSize = 5;
this._calendar.ItemSettings.ShowClocks = MindFusion.Scheduling.WinForms.ShowClocks.Never;
this._calendar.ItemSettings.Size = 60;
this._calendar.ItemSettings.Spacing = 0;
this._calendar.ItemSettings.UseStyledText = MindFusion.Scheduling.WinForms.State.Disabled;
this._calendar.Location = new System.Drawing.Point(6, 32);
this._calendar.MonthSettings.DayOfWeekFormat = MindFusion.Scheduling.WinForms.DayOfWeekFormat.Full;
this._calendar.Name = "_calendar";
this._calendar.Size = new System.Drawing.Size(454, 450);
this._calendar.TabIndex = 5;
this._calendar.Theme = MindFusion.Scheduling.WinForms.ThemeType.Windows2003;
this._calendar.WeekRangeSettings.DayNamesHeaderHeight = 24;
this._calendar.WeekRangeSettings.DayOfWeekFormat = MindFusion.Scheduling.WinForms.DayOfWeekFormat.Full;
this._calendar.WeekRangeSettings.DaySettings.HeaderSize = 20;
this._calendar.WeekRangeSettings.GroupWeekends = MindFusion.Scheduling.WinForms.State.Disabled;
this._calendar.WeekRangeSettings.VisibleRows = 8;
this._calendar.ItemModifying += new MindFusion.Scheduling.WinForms.ItemModifyConfirmEventHandler(this._schedule_itemModifying);
this._calendar.ItemClick += new MindFusion.Scheduling.WinForms.ItemMouseEventHandler(this._calendar_itemClick);
this._calendar.DateClick += new MindFusion.Scheduling.WinForms.ResourceDateEventHandler(this._calendar_dateclick);
this._calendar.VScroll += new System.Windows.Forms.ScrollEventHandler(this._calendar_VScroll);
[/code]

I've put break points in all my events and their not being hit...

Any ideas?

Thanks for that, I've done some more research on this. I have a custom Appointment class which is working well. I have a custom property for the appointment type, AM PM and Full day which is a enum.

I'm overriding the brush colours on the schedule type e.g.

[code]        public override Style Style
       {
           get
           {
               if (this.booked)
               {
                   base.Style.Brush = new MindFusion.Drawing.SolidBrush(System.Drawing.Color.Yellow);
                   base.Style.HeaderBrush = new MindFusion.Drawing.SolidBrush(System.Drawing.Color.Yellow);
                   base.Style.HeaderTextColor = System.Drawing.Color.Black;
               }
               else
               {
                   base.Style.Brush = new MindFusion.Drawing.SolidBrush(MyApp.getBgColor(this.SchType));
                   base.Style.HeaderBrush = new MindFusion.Drawing.SolidBrush(MyApp.getBgColor(this.SchType));
                   base.Style.HeaderTextColor = MyApp.getColor(this.SchType);
               }
               return base.Style;
           }
           set
           {
               base.Style = value;
           }
       }[/code]

When I run this, the proc goes to 100% and stays there, also if I write some debug output. The property is referenced, when adding an appointment, and ongoing even when the control is at idle. Once every second and more if I mouse over the control.

Any ideas?

Now you explained it, it seems obvious now. 

Thank Meppy, and it works a treat.