System::String dataDir = RunExamples::GetDataDir(System::Reflection::MethodBase::GetCurrentMethod(ASPOSE_CURRENT_FUNCTION)->get_DeclaringType().get_FullName());
    
// Create a project instance
System::SharedPtr<Project> prj = System::MakeObject<Project>();
    
// Define Calendar
System::SharedPtr<Aspose::Tasks::Calendar> cal = prj->get_Calendars()->Add(u"Calendar1");
    
// Define week days exception for a holiday
System::SharedPtr<CalendarException> except = System::MakeObject<CalendarException>();
except->set_EnteredByOccurrences(false);
except->set_FromDate(System::DateTime(2009, 12, 24, 0, 0, 0));
except->set_ToDate(System::DateTime(2009, 12, 31, 23, 59, 0));
except->set_Type(Aspose::Tasks::CalendarExceptionType::Daily);
except->set_DayWorking(false);
cal->get_Exceptions()->Add(except);
    
// Save the Project
prj->Save(dataDir + u"Project_DefineWeekDayException_out.xml", Aspose::Tasks::Saving::SaveFileFormat::XML);