This .NET class wraps the AcDbLinkedData ObjectARX class. 

This class is used to support data linking.

Autodesk.AutoCAD.DatabaseServices.DBObject
    Autodesk.AutoCAD.DatabaseServices.LinkedData
        Autodesk.AutoCAD.DatabaseServices.LinkedTableData

Public abstract Class LinkedData
Inherits DBObject

public abstract class LinkedData : DBObject;