MethodAttributes 枚举


指定方法属性的标志。Specifies flags for method attributes. 这些标志在 corhdr.h 文件中定义。These flags are defined in the corhdr.h file.

此枚举有一个 FlagsAttribute 属性,允许按位组合成员值。

public enum class MethodAttributes
public enum MethodAttributes
type MethodAttributes = 
Public Enum MethodAttributes


Abstract 1024

指示此类不提供此方法的实现。Indicates that the class does not provide an implementation of this method.

Assembly 3

指示此方法可由该程序集的任何类访问。Indicates that the method is accessible to any class of this assembly.

CheckAccessOnOverride 512

指示仅当此方法可访问时,才可以对其进行重写。Indicates that the method can only be overridden when it is also accessible.

FamANDAssem 2

指示此方法只能由该类型和它在此程序集中的派生类型的成员访问。Indicates that the method is accessible to members of this type and its derived types that are in this assembly only.

Family 4

指示此方法只可由该类及其派生类的成员访问。Indicates that the method is accessible only to members of this class and its derived classes.

FamORAssem 5

指示此方法可由任意位置的派生类访问,也可由程序集中的任何类访问。Indicates that the method is accessible to derived classes anywhere, as well as to any class in the assembly.

Final 32

指示无法重写此方法。Indicates that the method cannot be overridden.

HasSecurity 16384

指示此方法具有关联的安全性。Indicates that the method has security associated with it. 保留此标志仅供运行时使用。Reserved flag for runtime use only.

HideBySig 128

指示此方法按名称和签名隐藏,否则只按名称隐藏。Indicates that the method hides by name and signature; otherwise, by name only.

MemberAccessMask 7

检索可访问性信息。Retrieves accessibility information.

NewSlot 256

指示此方法总是获取 vtable 中的新槽。Indicates that the method always gets a new slot in the vtable.

PinvokeImpl 8192

指示此方法的实现通过 PInvoke(平台调用服务)转发。Indicates that the method implementation is forwarded through PInvoke (Platform Invocation Services).

Private 1

指示此方法只能由当前类访问。Indicates that the method is accessible only to the current class.

PrivateScope 0

指示该成员不能被引用。Indicates that the member cannot be referenced.

Public 6

指示此方法可由任何包括该对象的对象访问。Indicates that the method is accessible to any object for which this object is in scope.

RequireSecObject 32768

指示此方法调用另一个包含安全性代码的方法。Indicates that the method calls another method containing security code. 保留此标志仅供运行时使用。Reserved flag for runtime use only.

ReservedMask 53248

指示仅供运行时使用的保留标志。Indicates a reserved flag for runtime use only.

ReuseSlot 0

指示此方法将重复使用 vtable 中的现有槽。Indicates that the method will reuse an existing slot in the vtable. 这是默认行为。This is the default behavior.

RTSpecialName 4096

指示公共语言运行时检查名称编码。Indicates that the common language runtime checks the name encoding.

SpecialName 2048

指示此方法是特殊的。Indicates that the method is special. 名称描述此方法的特殊性。The name describes how this method is special.

Static 16

指示在类型上定义此方法,否则基于每个实例定义此方法。Indicates that the method is defined on the type; otherwise, it is defined per instance.

UnmanagedExport 8

指示此托管方法由 thunk 导出为非托管代码。Indicates that the managed method is exported by thunk to unmanaged code.

Virtual 64

指示此方法为虚方法。Indicates that the method is virtual.

VtableLayoutMask 256

检索 vtable 属性。Retrieves vtable attributes.


下面的示例显示指定方法的属性。The following example displays the attributes of the specified method.

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::InteropServices;

public ref class AttributesSample
   void Mymethod( int int1m, [Out]interior_ptr<String^> str2m, interior_ptr<String^> str3m )
       *str2m = "in Mymethod";

void PrintAttributes( Type^ attribType, int iAttribValue )
   if (  !attribType->IsEnum )
      Console::WriteLine( "This type is not an enum." );

   array<FieldInfo^>^fields = attribType->GetFields( static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Static) );
   for ( int i = 0; i < fields->Length; i++ )
      int fieldvalue = safe_cast<Int32>(fields[ i ]->GetValue( nullptr ));
      if ( (fieldvalue & iAttribValue) == fieldvalue )
         Console::WriteLine( fields[ i ]->Name );

int main()
   Console::WriteLine( "Reflection.MethodBase.Attributes Sample" );

   // Get the type of the chosen class.
   Type^ MyType = Type::GetType( "AttributesSample" );

   // Get the method Mymethod on the type.
   MethodBase^ Mymethodbase = MyType->GetMethod( "Mymethod" );

   // Display the method name and signature.
   Console::WriteLine( "Mymethodbase = {0}", Mymethodbase );

   // Get the MethodAttribute enumerated value.
   MethodAttributes Myattributes = Mymethodbase->Attributes;

   // Display the flags that are set.
   PrintAttributes( System::Reflection::MethodAttributes::typeid, (int)Myattributes );
   return 0;
using System;
using System.Reflection;
class AttributesSample
    public void Mymethod (int int1m, out string str2m, ref string str3m)
        str2m = "in Mymethod";
    public static int Main(string[] args)
        Console.WriteLine ("Reflection.MethodBase.Attributes Sample");
        // Get the type of the chosen class.
        Type MyType = Type.GetType("AttributesSample");
        // Get the method Mymethod on the type.
        MethodBase Mymethodbase = MyType.GetMethod("Mymethod");
        // Display the method name and signature.
        Console.WriteLine("Mymethodbase = " + Mymethodbase);
        // Get the MethodAttribute enumerated value.
        MethodAttributes Myattributes = Mymethodbase.Attributes;
        // Display the flags that are set.
        PrintAttributes(typeof(System.Reflection.MethodAttributes), (int) Myattributes);
        return 0;
    public static void PrintAttributes(Type attribType, int iAttribValue)
        if (!attribType.IsEnum) {Console.WriteLine("This type is not an enum."); return;}
        FieldInfo[] fields = attribType.GetFields(BindingFlags.Public | BindingFlags.Static);
        for (int i = 0; i < fields.Length; i++)
            int fieldvalue = (Int32)fields[i].GetValue(null);
            if ((fieldvalue & iAttribValue) == fieldvalue)
Imports System.Reflection

Class AttributesSample

    Public Sub Mymethod(ByVal int1m As Integer, ByRef str2m As String, ByRef str3m As String)
        str2m = "in Mymethod"
    End Sub

    Public Shared Function Main(ByVal args() As String) As Integer
        Console.WriteLine("Reflection.MethodBase.Attributes Sample")

        ' Get the type of a chosen class.
        Dim MyType As Type = Type.GetType("AttributesSample")

        ' Get the method Mymethod on the type.
        Dim Mymethodbase As MethodBase = MyType.GetMethod("Mymethod")

        ' Display the method name and signature.
        Console.WriteLine("Mymethodbase = {0}", Mymethodbase)

        ' Get the MethodAttribute enumerated value.
        Dim Myattributes As MethodAttributes = Mymethodbase.Attributes

        ' Display the flags that are set.
        PrintAttributes(GetType(System.Reflection.MethodAttributes), CInt(Myattributes))
        Return 0
    End Function 'Main

    Public Shared Sub PrintAttributes(ByVal attribType As Type, ByVal iAttribValue As Integer)
        If Not attribType.IsEnum Then
            Console.WriteLine("This type is not an enum.")
        End If
        Dim fields As FieldInfo() = attribType.GetFields((BindingFlags.Public Or BindingFlags.Static))
        Dim i As Integer
        For i = 0 To fields.Length - 1
            Dim fieldvalue As Integer = CType(fields(i).GetValue(Nothing), Int32)
            If (fieldvalue And iAttribValue) = fieldvalue Then
            End If
        Next i
    End Sub
End Class