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ArgumentNullException Constructor (String)

Initializes a new instance of the ArgumentNullException class with the name of the parameter that causes this exception.

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

public ArgumentNullException(
	string paramName
)

Parameters

paramName
Type: System.String
The name of the parameter that caused the exception.

This constructor initializes the Message property of the new instance to a system-supplied message that describes the error, such as "Argument cannot be null." This message takes into account 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.

Property

Value

InnerException

A null reference (Nothing in Visual Basic).

Message

The empty string ("").

ParamName

The parameter name string.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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