ArcGIS Pro 2.6 API Reference Guide
Item Class
Members 

ArcGIS.Desktop.Core Namespace : Item Class
Represents an item that is available to be used in the current project
Object Model
Item ClassItem ClassTimeInstant Class
Syntax
Remarks

An item is a dataset, feature class, table, service, tool, file, folder, and so on that can be used in the current project. For example, an item could be an ArcMap document returned by a search that you want to import to the current project. An item could also be available from the active portal

Inheritance Hierarchy

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

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

Item Members
ArcGIS.Desktop.Core Namespace