MethodImplAttributes Enumeration

Specifies flags for the attributes of a method implementation.

Syntax

[System.Runtime.InteropServices.ComVisible(true)]
public enum MethodImplAttributes

Remarks

The attributes are combined using the bitwise OR operation as follows:

Code implementation masks:

CodeTypeMask
IL
Native
OPTIL
Runtime

Managed masks:

ManagedMask
Unmanaged
Managed

Implementation information and interop masks:

ForwardRef
PreserveSig
InternalCall
Synchronized
NoInlining
NoOptimization
MaxMethodImplVal

Note:

Locking on the instance or on the type, as with the MethodImplAttributes.Synchronized flag, is not recommended for public types, because code other than your own can take locks on public types and instances. This might cause deadlocks or other synchronization problems.

Members

Member Name	Description
AggressiveInlining	Specifies that the method should be inlined wherever possible.
CodeTypeMask	Specifies flags about code type.
ForwardRef	Specifies that the method is not defined.
IL	Specifies that the method implementation is in Microsoft intermediate language (MSIL).
InternalCall	Specifies an internal call.
Managed	Specifies that the method is implemented in managed code.
ManagedMask	Specifies whether the method is implemented in managed or unmanaged code.
MaxMethodImplVal	Specifies a range check value.
Native	Specifies that the method implementation is native.
NoInlining	Specifies that the method cannot be inlined.
NoOptimization	Specifies that the method is not optimized by the just-in-time (JIT) compiler or by native code generation (see Ngen.exe) when debugging possible code generation problems.
OPTIL	Specifies that the method implementation is in Optimized Intermediate Language (OPTIL).
PreserveSig	Specifies that the method signature is exported exactly as declared.
Runtime	Specifies that the method implementation is provided by the runtime.
Synchronized	Specifies that the method is single-threaded through the body. Static methods (Shared in Visual Basic) lock on the type, whereas instance methods lock on the instance. You can also use the C# lock statement or the Visual Basic SyncLock statement for this purpose.
Unmanaged	Specifies that the method is implemented in unmanaged code.

Requirements

Namespace: System.Reflection
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0