FieldBuilder.Name Propiedad

Definición

Espacio de nombres:

System.Reflection.Emit

Ensamblado:

System.Reflection.Emit.dll

Indica el nombre de este campo. Esta propiedad es de sólo lectura.

public:
 virtual property System::String ^ Name { System::String ^ get(); };

public override string Name { get; }

member this.Name : string

Public Overrides ReadOnly Property Name As String

Valor de propiedad

String

String que contiene el nombre de este campo.

Comentarios

En el ejemplo de código siguiente se muestra el uso de Name.

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

public class FieldBuilder_Sample
{
    private static Type? CreateType()
    {
        // Create an assembly.
        AssemblyName assemName = new AssemblyName();
        assemName.Name = "DynamicAssembly";
        AssemblyBuilder assemBuilder =
                       AssemblyBuilder.DefineDynamicAssembly(assemName, AssemblyBuilderAccess.Run);
        // Create a dynamic module in Dynamic Assembly.
        ModuleBuilder modBuilder = assemBuilder.DefineDynamicModule("DynamicModule");
        // Define a public class named "DynamicClass" in the assembly.
        TypeBuilder typBuilder = modBuilder.DefineType("DynamicClass", TypeAttributes.Public);

        // Define a private String field named "DynamicField" in the type.
        FieldBuilder fldBuilder = typBuilder.DefineField("DynamicField",
            typeof(string), FieldAttributes.Private | FieldAttributes.Static);
        // Create the constructor.
        Type[] constructorArgs = { typeof(String) };
        ConstructorBuilder constructor = typBuilder.DefineConstructor(
           MethodAttributes.Public, CallingConventions.Standard, constructorArgs);
        ILGenerator constructorIL = constructor.GetILGenerator();
        constructorIL.Emit(OpCodes.Ldarg_0);
        ConstructorInfo? superConstructor = typeof(Object).GetConstructor(new Type[0]);
        constructorIL.Emit(OpCodes.Call, superConstructor!);
        constructorIL.Emit(OpCodes.Ldarg_0);
        constructorIL.Emit(OpCodes.Ldarg_1);
        constructorIL.Emit(OpCodes.Stfld, fldBuilder);
        constructorIL.Emit(OpCodes.Ret);

        // Create the DynamicMethod method.
        MethodBuilder methBuilder = typBuilder.DefineMethod("DynamicMethod",
                             MethodAttributes.Public, typeof(String), null);
        ILGenerator methodIL = methBuilder.GetILGenerator();
        methodIL.Emit(OpCodes.Ldarg_0);
        methodIL.Emit(OpCodes.Ldfld, fldBuilder);
        methodIL.Emit(OpCodes.Ret);

        Console.WriteLine($"Name               : {fldBuilder.Name}");
        Console.WriteLine($"DeclaringType      : {fldBuilder.DeclaringType}");
        Console.WriteLine($"Type               : {fldBuilder.FieldType}");
        return typBuilder.CreateType();
    }

    public static void Main()
    {
        Type? dynType = CreateType();
        try
        {
            if (dynType is not null)
            {
                // Create an instance of the "HelloWorld" class.
                Object? helloWorld = Activator.CreateInstance(dynType, new Object[] { "HelloWorld" });
                // Invoke the "DynamicMethod" method of the "DynamicClass" class.
                Object? obj = dynType.InvokeMember("DynamicMethod",
                               BindingFlags.InvokeMethod, null, helloWorld, null);
                Console.WriteLine($"DynamicClass.DynamicMethod returned: \"{obj}\"");
            }
        }
        catch (MethodAccessException e)
        {
            Console.WriteLine($"{e.GetType().Name}: {e.Message}");
        }
    }
}

Imports System.Reflection
Imports System.Reflection.Emit

Public Module FieldBuilder_Sample
   Private Function CreateType() As Type
      ' Create an assembly.
      Dim assemName As New AssemblyName()
      assemName.Name = "DynamicAssembly"
      Dim assemBuilder As AssemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(assemName,
                                                AssemblyBuilderAccess.Run)
      ' Create a dynamic module in Dynamic Assembly.
      Dim modBuilder As ModuleBuilder = assemBuilder.DefineDynamicModule("DynamicModule")
      ' Define a public class named "DynamicClass" in the assembly.
      Dim typBuilder As TypeBuilder = modBuilder.DefineType("DynamicClass", 
                                          TypeAttributes.Public)
      ' Define a private String field named "DynamicField" in the type.
      Dim fldBuilder As FieldBuilder = typBuilder.DefineField("DynamicField",
                  GetType(String), FieldAttributes.Private Or FieldAttributes.Static)
      ' Create the constructor.
      Dim constructorArgs As Type() = {GetType(String)}
      Dim constructor As ConstructorBuilder = 
                  typBuilder.DefineConstructor(MethodAttributes.Public, 
                           CallingConventions.Standard, constructorArgs)
      Dim constructorIL As ILGenerator = constructor.GetILGenerator()
      constructorIL.Emit(OpCodes.Ldarg_0)
      Dim superConstructor As ConstructorInfo = GetType(Object).GetConstructor(New Type() {})
      constructorIL.Emit(OpCodes.Call, superConstructor)
      constructorIL.Emit(OpCodes.Ldarg_0)
      constructorIL.Emit(OpCodes.Ldarg_1)
      constructorIL.Emit(OpCodes.Stfld, fldBuilder)
      constructorIL.Emit(OpCodes.Ret)

      ' Create the DynamicMethod method.
      Dim methBuilder As MethodBuilder = typBuilder.DefineMethod("DynamicMethod", 
                        MethodAttributes.Public, GetType(String), Nothing)
      Dim methodIL As ILGenerator = methBuilder.GetILGenerator()
      methodIL.Emit(OpCodes.Ldarg_0)
      methodIL.Emit(OpCodes.Ldfld, fldBuilder)
      methodIL.Emit(OpCodes.Ret)

      Console.WriteLine($"Name               : {fldBuilder.Name}")
      Console.WriteLine($"DeclaringType      : {fldBuilder.DeclaringType}")
      Console.WriteLine($"Type               : {fldBuilder.FieldType}")
      Return typBuilder.CreateType()
   End Function 

   Public Sub Main()
      Dim dynType As Type = CreateType()
      Try  
        ' Create an instance of the "HelloWorld" class.
         Dim helloWorld As Object = Activator.CreateInstance(dynType, New Object() {"HelloWorld"})
         ' Invoke the "DynamicMethod" method of the "DynamicClass" class.
         Dim obj As Object = dynType.InvokeMember("DynamicMethod", 
                  BindingFlags.InvokeMethod, Nothing, helloWorld, Nothing)
         Console.WriteLine($"DynamicClass.DynamicMethod returned: ""{obj}""")
      Catch e As MethodAccessException
            Console.WriteLine($"{e.GetType().Name}: {e.Message}")
      End Try
   End Sub 
End Module