The exception that is thrown when nullNothingnullptra null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

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

Syntax

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

Inheritance Hierarchy

System..::..Object
  System..::..Exception
    Autodesk.Revit.Exceptions..::..ApplicationException
      Autodesk.Revit.Exceptions..::..ArgumentException
        Autodesk.Revit.Exceptions..::..ArgumentNullException

See Also