The exception that is thrown when referencing an object that is no longer valid.

Namespace: Autodesk.Revit.Exceptions
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)

Syntax

C#
[SerializableAttribute]
public class InvalidObjectException : InvalidOperationException
Visual Basic
<SerializableAttribute> _
Public Class InvalidObjectException _
	Inherits InvalidOperationException
Visual C++
[SerializableAttribute]
public ref class InvalidObjectException : public InvalidOperationException

Remarks

The object may no longer exist for many reasons:
  • The object was explicitly deleted from the database.
  • A change to other database items caused the item to be automatically deleted from the database.
  • The object no longer exists as its creation was undone (by rolling a transaction back).

Inheritance Hierarchy

System..::..Object
  System..::..Exception
    Autodesk.Revit.Exceptions..::..ApplicationException
      Autodesk.Revit.Exceptions..::..InvalidOperationException
        Autodesk.Revit.Exceptions..::..InvalidObjectException

See Also