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OpCodes.Ret Field

Returns from the current method, pushing a return value (if present) from the callee's evaluation stack onto the caller's evaluation stack.

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

public static readonly OpCode Ret

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


Assembly Format




Returns from method, possibly returning a value.

The stack transitional behavior, in sequential order, is:

  1. The return value is popped from the callee evaluation stack.

  2. The return value obtained in step 1 is pushed onto the caller evaluation stack.

If the return value is not present on the callee evaluation stack, no value is returned (no stack transition behaviors for either the callee or caller method).

The type of the return value, if any, of the current method determines the type of value to be fetched from the top of the stack and copied onto the stack of the method that called the current method. The evaluation stack for the current method must be empty except for the value to be returned.

The ret instruction cannot be used to transfer control out of a try, filter, catch, or finally block. From within a try or catch, use the Leave instruction with a destination of a ret instruction that is outside all enclosing exception blocks. Because the filter and finally blocks are logically part of exception handling and not the method in which their code is embedded, correctly generated Microsoft Intermediate Language (MSIL) instructions do not perform a method return from within a filter or finally.

The following Emit method overload can use the ret 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.