EnumBuilder.SetCustomAttribute Método

Referência

Definição

Namespace:: System.Reflection.Emit

Assembly:: System.Reflection.Emit.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Pacote:: System.Reflection.Emit v4.7.0

Importante

Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.

Define atributos personalizados para esse construtor.

Sobrecargas

SetCustomAttribute(ConstructorInfo, Byte[])	Define um atributo personalizado usando um blob de atributo personalizado especificado.
SetCustomAttribute(CustomAttributeBuilder)	Define um atributo personalizado usando um construtor de atributos personalizados.

SetCustomAttribute(ConstructorInfo, Byte[])

Origem:: EnumBuilder.cs

Origem:: EnumBuilder.cs

Origem:: EnumBuilder.cs

Define um atributo personalizado usando um blob de atributo personalizado especificado.

public:
 void SetCustomAttribute(System::Reflection::ConstructorInfo ^ con, cli::array <System::Byte> ^ binaryAttribute);

public void SetCustomAttribute (System.Reflection.ConstructorInfo con, byte[] binaryAttribute);

[System.Runtime.InteropServices.ComVisible(true)]
public void SetCustomAttribute (System.Reflection.ConstructorInfo con, byte[] binaryAttribute);

member this.SetCustomAttribute : System.Reflection.ConstructorInfo * byte[] -> unit

[<System.Runtime.InteropServices.ComVisible(true)>]
member this.SetCustomAttribute : System.Reflection.ConstructorInfo * byte[] -> unit

Public Sub SetCustomAttribute (con As ConstructorInfo, binaryAttribute As Byte())

Parâmetros

con: ConstructorInfo

O construtor do atributo personalizado.

binaryAttribute: Byte[]

Um blob de bytes que representa os atributos.

Atributos: ComVisibleAttribute

Exceções

ArgumentNullException

con ou binaryAttribute é null.

Exemplos

O exemplo de código a seguir ilustra o uso de SetCustomAttribute no contexto de EnumBuilder, passando um blob de bytes.

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;

[AttributeUsage(AttributeTargets::All,AllowMultiple=false)]
public ref class MyAttribute: public Attribute
{
public:
   bool myBoolValue;
   MyAttribute( bool myBool )
   {
      this->myBoolValue = myBool;
   }
};

ref class MyApplication
{
private:
   static EnumBuilder^ myEnumBuilder;

public:
   static void Main()
   {
      try
      {
         CreateCallee( Thread::GetDomain() );
         array<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 ( dynamic_cast<MyAttribute^>(myAttributesArray[ index ]) )
            {
               Console::WriteLine( "myBoolValue: {0}", (dynamic_cast<MyAttribute^>(myAttributesArray[ index ]))->myBoolValue );
            }
         }
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "The following exception is raised:{0}", e->Message );
      }

   }

private:
   static void CreateCallee( AppDomain^ domain )
   {
      AssemblyName^ myAssemblyName = gcnew AssemblyName;

      // Create a name for the assembly.
      myAssemblyName->Name = "EmittedAssembly";

      // Create the dynamic assembly.
      AssemblyBuilder^ myAssemblyBuilder = domain->DefineDynamicAssembly( myAssemblyName, AssemblyBuilderAccess::Run );
      Type^ myType = MyAttribute::typeid;
      array<Type^>^temp0 = {bool::typeid};
      ConstructorInfo^ myInfo = myType->GetConstructor( temp0 );

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

      // Create a dynamic Enum.
      myEnumBuilder = myModuleBuilder->DefineEnum( "MyNamespace.MyEnum", TypeAttributes::Public, Int32::typeid );
      FieldBuilder^ myFieldBuilder1 = myEnumBuilder->DefineLiteral( "FieldOne", 1 );
      FieldBuilder^ myFieldBuilder2 = myEnumBuilder->DefineLiteral( "FieldTwo", 2 );
      myEnumBuilder->CreateType();
      array<Byte>^temp1 = {01,00,01};
      myEnumBuilder->SetCustomAttribute( myInfo, temp1 );
   }
};

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

using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;

[AttributeUsage(AttributeTargets.All, AllowMultiple = false)]
public class MyAttribute2 : Attribute
{
   public bool myBoolValue;

   public MyAttribute2(bool myBool)
   {
      this.myBoolValue = myBool;
   }
}

class MyApplication2
{
   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 MyAttribute2)
            {
               Console.WriteLine("myBoolValue: " +
                                       ((MyAttribute2)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(MyAttribute2);
      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});
   }
}

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
End Class

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
   
   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
End Class

Comentários

Para obter informações sobre como formatar binaryAttribute, consulte a especificação de metadados na Partição II da especificação da CLI (Common Language Infrastructure).

Aplica-se a

SetCustomAttribute(CustomAttributeBuilder)

Origem:: EnumBuilder.cs

Origem:: EnumBuilder.cs

Origem:: EnumBuilder.cs

Define um atributo personalizado usando um construtor de atributos personalizados.

public:
 void SetCustomAttribute(System::Reflection::Emit::CustomAttributeBuilder ^ customBuilder);

public void SetCustomAttribute (System.Reflection.Emit.CustomAttributeBuilder customBuilder);

member this.SetCustomAttribute : System.Reflection.Emit.CustomAttributeBuilder -> unit

Public Sub SetCustomAttribute (customBuilder As CustomAttributeBuilder)

Parâmetros

customBuilder: CustomAttributeBuilder

Uma instância de uma classe auxiliar para definir o atributo personalizado.

Exceções

ArgumentNullException

con é null.

Exemplos

O exemplo de código a seguir ilustra o uso de SetCustomAttribute no contexto de EnumBuilder, passando um CustomAttributeBuilder.

using namespace System;
using namespace System::Threading;
using namespace System::Reflection;
using namespace System::Reflection::Emit;

[AttributeUsage(AttributeTargets::All,AllowMultiple=false)]
public ref class MyAttribute: public Attribute
{
public:
   bool myBoolValue;
   MyAttribute( bool myBool )
   {
      this->myBoolValue = myBool;
   }
};

ref class MyApplication
{
private:
   static EnumBuilder^ myEnumBuilder;

public:
   static void Main()
   {
      try
      {
         CreateCallee( Thread::GetDomain() );
         array<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 ( dynamic_cast<MyAttribute^>(myAttributesArray[ index ]) )
            {
               Console::WriteLine( "myBoolValue: {0}", (dynamic_cast<MyAttribute^>(myAttributesArray[ index ]))->myBoolValue );
            }
         }
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "The following exception is raised:{0}", e->Message );
      }

   }

private:
   static void CreateCallee( AppDomain^ domain )
   {
      AssemblyName^ myAssemblyName = gcnew AssemblyName;

      // Create a name for the assembly.
      myAssemblyName->Name = "EmittedAssembly";

      // Create the dynamic assembly.
      AssemblyBuilder^ myAssemblyBuilder = domain->DefineDynamicAssembly( myAssemblyName, AssemblyBuilderAccess::Run );
      Type^ myType = MyAttribute::typeid;
      array<Type^>^temp0 = {bool::typeid};
      ConstructorInfo^ myInfo = myType->GetConstructor( temp0 );

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

      // Create a dynamic Enum.
      myEnumBuilder = myModuleBuilder->DefineEnum( "MyNamespace.MyEnum", TypeAttributes::Public, Int32::typeid );
      FieldBuilder^ myFieldBuilder1 = myEnumBuilder->DefineLiteral( "FieldOne", 1 );
      FieldBuilder^ myFieldBuilder2 = myEnumBuilder->DefineLiteral( "FieldTwo", 2 );
      myEnumBuilder->CreateType();
      array<Byte>^temp1 = {01,00,01};
      myEnumBuilder->SetCustomAttribute( myInfo, temp1 );
   }
};

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

using System;
using System.Threading;
using System.Reflection;
using System.Reflection.Emit;

[AttributeUsage(AttributeTargets.All, AllowMultiple = false)]
public class MyAttribute2 : Attribute
{
   public bool myBoolValue;

   public MyAttribute2(bool myBool)
   {
      this.myBoolValue = myBool;
   }
}

class MyApplication2
{
   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 MyAttribute2)
            {
               Console.WriteLine("myBoolValue: " +
                                       ((MyAttribute2)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(MyAttribute2);
      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});
   }
}

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
End Class

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
   
   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
End Class

Aplica-se a

Partilhar via

EnumBuilder.SetCustomAttribute Método

Definição

Sobrecargas

SetCustomAttribute(ConstructorInfo, Byte[])

Parâmetros

Exceções

Exemplos

Comentários

Aplica-se a

SetCustomAttribute(CustomAttributeBuilder)

Parâmetros

Exceções

Exemplos

Aplica-se a

Recursos adicionais