EnumBuilder.SetCustomAttribute メソッド

このコンストラクタにカスタム属性を設定します。

オーバーロードの一覧

カスタム属性ビルダを使用して、カスタム属性を設定します。

[Visual Basic] Overloads Public Sub SetCustomAttribute(CustomAttributeBuilder)

[C#] public void SetCustomAttribute(CustomAttributeBuilder);

[C++] public: void SetCustomAttribute(CustomAttributeBuilder*);

[JScript] public function SetCustomAttribute(CustomAttributeBuilder);

指定されたカスタム属性 BLOB を使用して、カスタム属性を設定します。

[Visual Basic] Overloads Public Sub SetCustomAttribute(ConstructorInfo, Byte())

[C#] public void SetCustomAttribute(ConstructorInfo, byte[]);

[C++] public: void SetCustomAttribute(ConstructorInfo*, unsigned char __gc[]);

[JScript] public function SetCustomAttribute(ConstructorInfo, Byte[]);

使用例

[Visual Basic, C#, C++] 次のコード例は、 EnumBuilder のコンテキストで、バイト BLOB を渡す SetCustomAttribute の使用方法を示しています。

[Visual Basic, C#, C++] メモ   ここでは、SetCustomAttribute のオーバーロード形式のうちの 1 つだけについて、使用例を示します。その他の例については、各オーバーロード形式のトピックを参照してください。

 
Imports System
Imports System.Threading
Imports System.Reflection
Imports System.Reflection.Emit

<AttributeUsage(AttributeTargets.All, AllowMultiple := False)>  _
Public Class MyAttribute
   Inherits Attribute
   Public myBoolValue As Boolean
   
   Public Sub New(myBool As Boolean)
      Me.myBoolValue = myBool
   End Sub 'New
End Class 'MyAttribute

Class MyApplication
   Private Shared myEnumBuilder As EnumBuilder
   
   Public Shared Sub Main()
      Try
         CreateCallee(Thread.GetDomain())
         Dim myAttributesArray As Object() = myEnumBuilder.GetCustomAttributes(True)
         
         ' Read the attributes and display them on the console.
         Console.WriteLine("Custom attribute contains: ")
         Dim index As Integer
         For index = 0 To myAttributesArray.Length - 1
            If TypeOf myAttributesArray(index) Is MyAttribute Then
               Console.WriteLine("myBoolValue: " + CType(myAttributesArray(index), MyAttribute). _
                                                                           myBoolValue.ToString())
            End If
         Next index
      Catch e As Exception
         Console.WriteLine("The following exception is raised:" + e.Message)
      End Try
   End Sub 'Main
   
   Private Shared Sub CreateCallee(___domain As AppDomain)
      Dim myAssemblyName As New AssemblyName()
      ' Create a name for the assembly.
      myAssemblyName.Name = "EmittedAssembly"
      
      ' Create the dynamic assembly.
      Dim myAssemblyBuilder As AssemblyBuilder = ___domain.DefineDynamicAssembly(myAssemblyName, _
                                                                  AssemblyBuilderAccess.Run)
      
      Dim myType As Type = GetType(MyAttribute)
      Dim myInfo As ConstructorInfo = myType.GetConstructor(New Type() {GetType(Boolean)})
      
      ' Create a dynamic module.
      Dim myModuleBuilder As ModuleBuilder = myAssemblyBuilder.DefineDynamicModule("EmittedModule")
      
      ' Create a dynamic Enum.
      myEnumBuilder = myModuleBuilder.DefineEnum("MyNamespace.MyEnum", TypeAttributes.Public, _
                                                                              GetType(Int32))
      
      Dim myFieldBuilder1 As FieldBuilder = myEnumBuilder.DefineLiteral("FieldOne", 1)
      Dim myFieldBuilder2 As FieldBuilder = myEnumBuilder.DefineLiteral("FieldTwo", 2)
      
      myEnumBuilder.CreateType()
      myEnumBuilder.SetCustomAttribute(myInfo, New Byte() {1, 0, 1})
   End Sub 'CreateCallee 
End Class 'MyApplication

[C#] 
using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;


[AttributeUsage(AttributeTargets.All, AllowMultiple = false)]
public class MyAttribute : Attribute
{
   public bool myBoolValue;

   public MyAttribute(bool myBool)
   {
      this.myBoolValue = myBool;
   }
}

class MyApplication
{
   static EnumBuilder myEnumBuilder;
   
   public static void Main()
   {
      try
      {
         CreateCallee(Thread.GetDomain());
         object[] myAttributesArray = myEnumBuilder.GetCustomAttributes(true);

         // Read the attributes and display them on the console.
         Console.WriteLine("Custom attribute contains: ");
         for(int index=0; index < myAttributesArray.Length; index++)
         {
            if(myAttributesArray[index] is MyAttribute)
            {
               Console.WriteLine("myBoolValue: " + 
                                       ((MyAttribute)myAttributesArray[index]).myBoolValue);
            }
         }
      }
      catch(Exception e)
      {
         Console.WriteLine("The following exception is raised:" +e.Message);
      }
   }

   private static void CreateCallee(AppDomain ___domain)
   {
      AssemblyName myAssemblyName = new AssemblyName();
      // Create a name for the assembly.
      myAssemblyName.Name = "EmittedAssembly";
     
      // Create the dynamic assembly.
      AssemblyBuilder myAssemblyBuilder 
                  = ___domain.DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess.Run); 
      
      Type myType = typeof(MyAttribute);
      ConstructorInfo myInfo = myType.GetConstructor(new Type[]{typeof(bool)});
                  
      // Create a dynamic module.
      ModuleBuilder myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("EmittedModule");
      
      // Create a dynamic Enum.
      myEnumBuilder = 
         myModuleBuilder.DefineEnum("MyNamespace.MyEnum", TypeAttributes.Public, typeof(Int32));

      FieldBuilder myFieldBuilder1 = myEnumBuilder.DefineLiteral("FieldOne", 1);
      FieldBuilder myFieldBuilder2 = myEnumBuilder.DefineLiteral("FieldTwo", 2);  

      myEnumBuilder.CreateType();
      myEnumBuilder.SetCustomAttribute(myInfo, new byte[]{01,00,01});
      
   }
}

[C++] 
#using <mscorlib.dll>
using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;


[AttributeUsage(AttributeTargets::All, AllowMultiple = false)]
public __gc class MyAttribute : public Attribute
{
public:
   bool myBoolValue;

public:
   MyAttribute(bool myBool)
   {
      this->myBoolValue = myBool;
   }
};

__gc class MyApplication
{
   static EnumBuilder* myEnumBuilder;

public:   
   static void Main()
   {
      try
      {
         CreateCallee(Thread::GetDomain());
         Object* myAttributesArray[] = myEnumBuilder->GetCustomAttributes(true);

         // Read the attributes and display them on the console.
         Console::WriteLine(S"Custom attribute contains: ");
         for(int index=0; index < myAttributesArray->Length; index++)
         {
            if(dynamic_cast<MyAttribute*>(myAttributesArray[index]))
            {
               Console::WriteLine(S"myBoolValue: {0}",
                  __box((dynamic_cast<MyAttribute*>(myAttributesArray[index]))->myBoolValue));
            }
         }
      }
      catch(Exception* e)
      {
         Console::WriteLine(S"The following exception is raised:{0}", e->Message);
      }
   }

private:
   static void CreateCallee(AppDomain* ___domain)
   {
      AssemblyName* myAssemblyName = new AssemblyName();
      // Create a name for the assembly.
      myAssemblyName->Name = S"EmittedAssembly";

      // Create the dynamic assembly.
      AssemblyBuilder* myAssemblyBuilder 
         = ___domain->DefineDynamicAssembly(myAssemblyName, AssemblyBuilderAccess::Run); 

      Type* myType = __typeof(MyAttribute);

      Type* temp0 [] = {__typeof(bool)};
      ConstructorInfo* myInfo = myType->GetConstructor(temp0);

      // Create a dynamic module.
      ModuleBuilder* myModuleBuilder = myAssemblyBuilder->DefineDynamicModule(S"EmittedModule");

      // Create a dynamic Enum.
      myEnumBuilder = 
         myModuleBuilder->DefineEnum(S"MyNamespace.MyEnum", TypeAttributes::Public, __typeof(Int32));

      FieldBuilder* myFieldBuilder1 = myEnumBuilder->DefineLiteral(S"FieldOne",__box(1));
      FieldBuilder* myFieldBuilder2 = myEnumBuilder->DefineLiteral(S"FieldTwo",__box(2));  

      myEnumBuilder->CreateType();

      Byte temp1 [] = {01,00,01};
      myEnumBuilder->SetCustomAttribute(myInfo, temp1);

   }
};

int main()
{
   MyApplication::Main();
}

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参照

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