Hi

I am using Infragistic Vr 10.3 WinCalendar UltraDay View with multiple appointments.

While selecting multiple appointments a crash from Infragistic is coming(See below).This crash is not regular but random.

Please provide solution for same.

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See the end of this message for details on invoking

just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************

System.NullReferenceException: Object reference not set to an instance of an object.

   at Infragistics.Win.SelectionStrategyExtended.OnMouseUp(ISelectableItem item, MouseMessageInfo& msginfo)

  at Infragistics.Win.SelectionStrategyExtended.OnMouseMessage(ISelectableItem item, MouseMessageInfo& msginfo)

   at Infragistics.Win.ControlUIElementBase.ProcessMouseUpHelper(Object sender, MouseEventArgs e)

   at Infragistics.Win.ControlUIElementBase.ProcessMouseUp(Object sender, MouseEventArgs e)

   at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)

   at Infragistics.Win.UltraControlBase.OnMouseUp(MouseEventArgs e)

   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

   at System.Windows.Forms.Control.WndProc(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)