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OpCodes.Ldnull Field

Pushes a null reference (type O) onto the evaluation stack.

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

public static readonly OpCode Ldnull

The following table lists the instruction's hexadecimal and Microsoft Intermediate Language (MSIL) assembly format, along with a brief reference summary:

Format

Assembly Format

Description

14

ldnull

push a null reference onto the stack

The stack transitional behavior, in sequential order, is:

  1. A null object reference is pushed onto the stack.

ldnull pushes a null reference (type O) on the stack. This is used to initialize locations before they are populated with data, or when they become deprecated.

ldnull provides a null reference that is size-independent.

The following Emit method overload can use the ldnull opcode:

  • ILGenerator.Emit(OpCode)

.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

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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