ConstructorBuilder.Attributes プロパティ

このコンストラクタの属性を取得します。

Overrides Public ReadOnly Property Attributes As MethodAttributes
[C#]
public override MethodAttributes Attributes {get;}
[C++]
public: __property MethodAttributes get_Attributes();
[JScript]
public override function get Attributes() : MethodAttributes;

プロパティ値

このコンストラクタの属性を返します。

解説

Attributes の使用方法については、次のコード例を参照してください。

 
Dim myMethodBuilder As MethodBuilder = Nothing

Dim myCurrentDomain As AppDomain = AppDomain.CurrentDomain
' Create assembly in current CurrentDomain
Dim myAssemblyName As New AssemblyName()
myAssemblyName.Name = "TempAssembly"
' Create a dynamic assembly
myAssemblyBuilder = _
      myCurrentDomain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.RunAndSave)
' Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule")
Dim myFieldInfo As FieldInfo = _
    myModuleBuilder.DefineUninitializedData("myField", 2, FieldAttributes.Public)
' Create a type in the module
Dim myTypeBuilder As TypeBuilder = _
    myModuleBuilder.DefineType("TempClass", TypeAttributes.Public)
Dim myGreetingField As FieldBuilder = _
   myTypeBuilder.DefineField("Greeting", GetType(String), FieldAttributes.Public)
Dim myConstructorArgs As Type() = {GetType(String)}
' Define a constructor of the dynamic class.
Dim myConstructor As ConstructorBuilder = _
    myTypeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, _
                                    myConstructorArgs)
Dim myPset As New PermissionSet(PermissionState.Unrestricted)
' Add declarative security to the constructor.
Console.WriteLine("Adding declarative security to the constructor.....")
Console.WriteLine("The Security action to be taken is ""DENY"" and" + _
                  " Permission set is ""UNRESTRICTED"".")
myConstructor.AddDeclarativeSecurity(SecurityAction.Deny, myPset)
Dim myMethodAttributes As MethodAttributes = myConstructor.Attributes
Dim myAttributeType As Type = GetType(MethodAttributes)
Dim myAttribValue As Integer = CInt(myMethodAttributes)
If Not myAttributeType.IsEnum Then
   Console.WriteLine("This is not an Enum")
End If
Dim myFieldInfo1 As FieldInfo() = myAttributeType.GetFields(BindingFlags.Public Or _
                                                             BindingFlags.Static)
Console.WriteLine("The Field info names of the Attributes for the constructor are:")
Dim i As Integer
For i = 0 To myFieldInfo1.Length - 1
   Dim myFieldValue As Integer = CType(myFieldInfo1(i).GetValue(Nothing), Int32)
   If(myFieldValue And myAttribValue) = myFieldValue Then
      Console.WriteLine("   " + myFieldInfo1(i).Name)
   End If
Next i

Dim myType2 As Type = myConstructor.DeclaringType
Console.WriteLine("The declaring type is : " + myType2.ToString())

[C#] 
MethodBuilder myMethodBuilder=null;

AppDomain myCurrentDomain = AppDomain.CurrentDomain;
// Create assembly in current CurrentDomain
AssemblyName myAssemblyName = new AssemblyName();
myAssemblyName.Name = "TempAssembly";
// Create a dynamic assembly
myAssemblyBuilder = myCurrentDomain.DefineDynamicAssembly
   (myAssemblyName, AssemblyBuilderAccess.RunAndSave);
// Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule");
FieldInfo myFieldInfo =
   myModuleBuilder.DefineUninitializedData("myField",2,FieldAttributes.Public);
// Create a type in the module
TypeBuilder myTypeBuilder = myModuleBuilder.DefineType("TempClass",TypeAttributes.Public);
FieldBuilder myGreetingField = myTypeBuilder.DefineField("Greeting",
   typeof(String), FieldAttributes.Public);
Type[] myConstructorArgs = { typeof(String) };
// Define a constructor of the dynamic class.
ConstructorBuilder myConstructor = myTypeBuilder.DefineConstructor(
   MethodAttributes.Public, CallingConventions.Standard, myConstructorArgs);
PermissionSet myPset = new PermissionSet(PermissionState.Unrestricted);
// Add declarative security to the constructor.
Console.WriteLine("Adding declarative security to the constructor.....");
Console.WriteLine("The Security action to be taken is \"DENY\" and" +
   " Permission set is \"UNRESTRICTED\".");
myConstructor.AddDeclarativeSecurity(SecurityAction.Deny,myPset);
MethodAttributes myMethodAttributes = myConstructor.Attributes;
Type myAttributeType = typeof(MethodAttributes);
int myAttribValue = (int) myMethodAttributes;
if(! myAttributeType.IsEnum)
{
   Console.WriteLine("This is not an Enum");
}
FieldInfo[] myFieldInfo1 = myAttributeType.GetFields(BindingFlags.Public | BindingFlags.Static);
Console.WriteLine("The Field info names of the Attributes for the constructor are:");
for (int i = 0; i < myFieldInfo1.Length; i++)
{
   int myFieldValue = (Int32)myFieldInfo1[i].GetValue(null);
   if ((myFieldValue & myAttribValue) == myFieldValue)
   {
      Console.WriteLine("   " + myFieldInfo1[i].Name);
   }
}

Type myType2 = myConstructor.DeclaringType;
Console.WriteLine("The declaring type is : "+myType2.ToString());

[C++] 
MethodBuilder* myMethodBuilder=0;

AppDomain* myCurrentDomain = AppDomain::CurrentDomain;
// Create assembly in current CurrentDomain
AssemblyName* myAssemblyName = new AssemblyName();
myAssemblyName->Name = S"TempAssembly";
// Create a dynamic assembly
myAssemblyBuilder = myCurrentDomain->DefineDynamicAssembly
   (myAssemblyName, AssemblyBuilderAccess::RunAndSave);
// Create a dynamic module in the assembly.
myModuleBuilder = myAssemblyBuilder->DefineDynamicModule(S"TempModule");
FieldInfo* myFieldInfo =
   myModuleBuilder->DefineUninitializedData(S"myField",2,FieldAttributes::Public);
// Create a type in the module
TypeBuilder* myTypeBuilder = myModuleBuilder->DefineType(S"TempClass",TypeAttributes::Public);
FieldBuilder* myGreetingField = myTypeBuilder->DefineField(S"Greeting",
   __typeof(String), FieldAttributes::Public);
Type* myConstructorArgs[] = { __typeof(String) };
// Define a constructor of the dynamic class.
ConstructorBuilder* myConstructor = myTypeBuilder->DefineConstructor(
   MethodAttributes::Public, CallingConventions::Standard, myConstructorArgs);
PermissionSet* myPset = new PermissionSet(PermissionState::Unrestricted);
// Add declarative security to the constructor.
Console::WriteLine(S"Adding declarative security to the constructor.....");
Console::WriteLine(S"The Security action to be taken is \"DENY\" and" 
   S" Permission set is \"UNRESTRICTED\".");
myConstructor->AddDeclarativeSecurity(SecurityAction::Deny,myPset);
MethodAttributes myMethodAttributes = myConstructor->Attributes;
Type* myAttributeType = __typeof(MethodAttributes);
int myAttribValue = (int) myMethodAttributes;
if(! myAttributeType->IsEnum)
{
   Console::WriteLine(S"This is not an Enum");
}
FieldInfo* myFieldInfo1[] = myAttributeType->GetFields
   (static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Static));
Console::WriteLine(S"The Field info names of the Attributes for the constructor are:");
for (int i = 0; i < myFieldInfo1->Length; i++)
{
   int myFieldValue = *dynamic_cast<Int32*>(myFieldInfo1[i]->GetValue(0));
   if ((myFieldValue & myAttribValue) == myFieldValue)
   {
      Console::WriteLine(S"   {0}", myFieldInfo1[i]->Name);
   }
}

Type* myType2 = myConstructor->DeclaringType;
Console::WriteLine(S"The declaring type is : {0}", myType2);

必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ

参照

ConstructorBuilder クラス | ConstructorBuilder メンバ | System.Reflection.Emit 名前空間