Moving Tasks

Microsoft Project allows moving one task under another task. In this case, the child tasks of the selected tasks are also moved with it. Aspose.Tasks for C++ API provides the same feature by moving a task under another task. This can be achieved by adding the selected task to the children of the new parent as shown in this article. The task can be moved under a different parent or the same parent.

Move Task Under Another Parent

Please note that using CalculationMode.None can improve performance when you add several tasks and call Recalculate method one time.

// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir(System::Reflection::MethodBase::GetCurrentMethod(ASPOSE_CURRENT_FUNCTION)->get_DeclaringType().get_FullName());
        
// Loading project file
System::SharedPtr<Project> project = System::MakeObject<Project>(dataDir + u"MoveTask.mpp");
        
// Set CalculationMode
project->set_CalculationMode(Aspose::Tasks::CalculationMode::Automatic);
        
// Get Tasks by Ids
System::SharedPtr<Task> t6 = project->get_RootTask()->get_Children()->GetByUid(6);
System::SharedPtr<Task> t3 = project->get_RootTask()->get_Children()->GetByUid(3);
        
// Adding Task 6 to another parent
t3->get_Children()->Add(t6);
        
// Saving File To Disk
project->Save(dataDir + u"MoveTaskUnderAnotherParent_out.mpp", Aspose::Tasks::Saving::SaveFileFormat::MPP);

Moving Task Under the Same Parent

The MoveToSibling method allows moving a task under the same parent to a specific position.

// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir(System::Reflection::MethodBase::GetCurrentMethod(ASPOSE_CURRENT_FUNCTION)->get_DeclaringType().get_FullName());
        
// Loading project file
System::SharedPtr<Project> project = System::MakeObject<Project>(dataDir + u"MoveTask.mpp");
        
// Move tasks with id 5 before task with id 3
System::SharedPtr<Task> task = project->get_RootTask()->get_Children()->GetById(5);
task->MoveToSibling(3);
        
// Saving File To Disk
project->Save(dataDir + u"MoveTaskUnderSameParent_out.mpp", Aspose::Tasks::Saving::SaveFileFormat::MPP);

Add Task To The End

To add a task to the end of the collection use -1.

// The path to the documents directory.
System::String dataDir = RunExamples::GetDataDir(System::Reflection::MethodBase::GetCurrentMethod(ASPOSE_CURRENT_FUNCTION)->get_DeclaringType().get_FullName());
        
// Loading project file
System::SharedPtr<Project> project = System::MakeObject<Project>(dataDir + u"MoveTask.mpp");
        
// Move tasks with id 2 to the end of the collection
System::SharedPtr<Task> task = project->get_RootTask()->get_Children()->GetById(2);
task->MoveToSibling(-1);
        
// Saving File To Disk
project->Save(dataDir + u"MoveTaskAtTheEnd_out.mpp", Aspose::Tasks::Saving::SaveFileFormat::MPP);

Setting a Task to a SubProject

// Create project instance
System::String dataDir = RunExamples::GetDataDir(System::Reflection::MethodBase::GetCurrentMethod(ASPOSE_CURRENT_FUNCTION)->get_DeclaringType().get_FullName());
System::SharedPtr<Project> project = System::MakeObject<Project>(dataDir + u"SubProjectTask.mpp");
        
// Add task
System::SharedPtr<Task> task = project->get_RootTask()->get_Children()->Add(u"Task 1");
        
// Setting new subproject link
task->Set<System::String>(Tsk::SubprojectName(), dataDir + u"subProject.mpp");
        
// Save project
project->Save(dataDir + u"SubProjectTask_out.mpp", Aspose::Tasks::Saving::SaveFileFormat::MPP);