ArgumentNullException Constructor (String, String)

ArgumentNullException Constructor (String, String)


Initializes an instance of the ArgumentNullException class with a specified error message and the name of the parameter that causes this exception.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

Public Sub New (
	paramName As String,
	message As String


Type: System.String

The name of the parameter that caused the exception.

Type: System.String

A message that describes the error.

This constructor initializes the Message property of the new instance using the value of the message parameter. The content of the message parameter is intended to be understood by humans. The caller of this constructor is required to ensure that this string has been localized for the current system culture.

This constructor initializes the ParamName property of the new instance using the paramName parameter. The content of paramName is intended to be understood by humans.

The following table shows the initial property values for an instance of ArgumentNullException.




A null reference (Nothing in Visual Basic).


The error message string.


The parameter name string.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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