ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.TaskAssistant Namespace / TaskProjectItem Class
Members Example Version

TaskProjectItem Class
Represents a task project item.
Object Model
TaskProjectItem ClassItemInfoValue StructureTimeInstant Class
Syntax
Remarks
Task project items are stored within the project and are visible under the Tasks category in the Catalog pane.
Example
Retrieve all the Task Items in a Project
IEnumerable<TaskProjectItem> taskItems = Project.Current.GetItems<TaskProjectItem>();
foreach (var item in taskItems)
{
  // do something
}
Open a Project Task Item
// get the first project task item
var taskItem = Project.Current.GetItems<TaskProjectItem>().FirstOrDefault();
// if there isn't a project task item, return
if (taskItem == null)
  return;

try
{
  // Open it
  //At 2.x -
  //System.Guid guid = await TaskAssistantModule.OpenTaskItemAsync(taskItem.TaskItemGuid);
  var guid = await TaskAssistantFactory.Instance.OpenTaskItemAsync(taskItem.TaskItemGuid);

  // TODO - retain the guid returned for use with CloseTaskItemAsync
}
catch (OpenTaskException e)
{
  ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show(e.Message);
}
Close a Task Item
// find the first project task item which is open
var taskItem = Project.Current.GetItems<TaskProjectItem>().FirstOrDefault(t => t.IsOpen == true);
// if there isn't a project task item, return
if (taskItem == null)
  return;

if (taskItem.IsOpen)
{
  // close it
  // NOTE : The task item will also be removed from the project
  //At 2.x -
  //TaskAssistantModule.CloseTaskAsync(taskItem.TaskItemGuid);
  TaskAssistantFactory.Instance.CloseTaskItemAsync(taskItem.TaskItemGuid);
}
Export a Task Item
// get the first project task item
var taskItem = Project.Current.GetItems<TaskProjectItem>().FirstOrDefault();
// if there isn't a project task item, return
if (taskItem == null)
  return;

try
{
  // export the task item to the c:\Temp folder
  string exportFolder = @"c:\temp";
  //At 2.x -
  //string fileName = await TaskAssistantModule.ExportTaskAsync(taskItem.TaskItemGuid, exportFolder);
  string fileName = await TaskAssistantFactory.Instance.ExportTaskItemAsync(taskItem.TaskItemGuid, exportFolder);
  ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Task saved to " + fileName);
}
catch (ExportTaskException e)
{
  ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Error saving task " + e.Message);
}
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Framework.Contracts.PropertyChangedBase
      ArcGIS.Desktop.Core.Item
         ArcGIS.Desktop.TaskAssistant.TaskProjectItem

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also