// Create empty project and set calculation mode to Manual
System::SharedPtr<Project> project = System::MakeObject<Project>();
project->set_CalculationMode(Aspose::Tasks::CalculationMode::Manual);
    
// Set project start date and add new tasks
project->Set(Prj::StartDate(), System::DateTime(2015, 4, 15));
System::SharedPtr<Task> task1 = project->get_RootTask()->get_Children()->Add(u"Task 1");
System::SharedPtr<Task> task2 = project->get_RootTask()->get_Children()->Add(u"Task 2");
    
// The necessary properties are set in manual mode
System::Console::WriteLine(u"Task1.Id Equals 1 : {0} ", System::ObjectExt::Box<bool>(System::Equals(task1->Get<int32_t>(Tsk::Id()), 1)));
System::Console::WriteLine(u"Task1 OutlineLevel Equals 1 : {0} ", System::ObjectExt::Box<bool>(System::Equals(task1->Get<int32_t>(Tsk::OutlineLevel()), 1)));
System::Console::WriteLine(u"Task1 Start Equals 15/04/2015 08:00 AM : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task1->Get<System::DateTime>(Tsk::Start()), System::DateTime(2015, 4, 15, 8, 0, 0))));
System::Console::WriteLine(u"Task1 Finish Equals 15/04/2015 05:00 PM : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task1->Get<System::DateTime>(Tsk::Finish()), System::DateTime(2015, 4, 15, 17, 0, 0))));
System::Console::WriteLine(u"Task1 Duration Equals 1 day : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(System::ObjectExt::ToString(task1->Get<Duration>(Tsk::Duration())), u"1 day")));
System::Console::WriteLine(u"Task2 Start Equals 15/04/2015 08:00 AM : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task2->Get<System::DateTime>(Tsk::Start()), System::DateTime(2015, 4, 15, 8, 0, 0))));
System::Console::WriteLine(u"Task2 Finish Equals 15/04/2015 05:00 PM : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task2->Get<System::DateTime>(Tsk::Finish()), System::DateTime(2015, 4, 15, 17, 0, 0))));
System::Console::WriteLine(u"Task2 Duration Equals 1 day : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(System::ObjectExt::ToString(task2->Get<Duration>(Tsk::Duration())), u"1 day")));
    
// When we link two tasks together their dates are not recalculated in manual mode
System::SharedPtr<TaskLink> link = project->get_TaskLinks()->Add(task1, task2, Aspose::Tasks::TaskLinkType::FinishToStart);
    
// Task 2 Start has not been changed
System::Console::WriteLine(u"Task1 Start Equals Task2 Start : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task1->Get<System::DateTime>(Tsk::Start()), task2->Get<System::DateTime>(Tsk::Start()))));
System::Console::WriteLine(u"Task1 Finish Equals Task2 Finish : {0} ", System::ObjectExt::Box<bool>(System::ObjectExt::Equals(task1->Get<System::DateTime>(Tsk::Finish()), task2->Get<System::DateTime>(Tsk::Finish()))));