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Método MethodBase.GetCurrentMethod ()

 

Publicado: julio de 2016

Devuelve un objeto MethodBase que representa el método actualmente en ejecución.

Espacio de nombres:   System.Reflection
Ensamblado:  mscorlib (en mscorlib.dll)

public static MethodBase GetCurrentMethod()

Valor devuelto

Type: System.Reflection.MethodBase

GetCurrentMethod es un método estático que se llama desde dentro del método que se está ejecutando y devuelve información acerca de ese método.

Objeto MethodBase que representa el método actualmente en ejecución.

Exception Condition
TargetException

Este miembro se invocó con un mecanismo de enlace en tiempo de ejecución.

If the currently executing method is defined on a generic type, the T:System.Reflection.MethodInfo that is returned by M:System.Reflection.MethodBase.GetCurrentMethod is obtained from the generic type definition (that is, P:System.Reflection.MethodInfo.ContainsGenericParameters returns true). Therefore, it does not reflect the type arguments that were used when the method was called. For example, if a method M() is defined on a generic type C<T> (C(Of T) in Visual Basic), and M:System.Reflection.MethodBase.GetCurrentMethod is called from C<string>.M(), then M:System.Reflection.MethodBase.GetCurrentMethod returns C<T>.M() (C(Of T).M() in Visual Basic).

If the currently executing method is a generic method, M:System.Reflection.MethodBase.GetCurrentMethod returns the generic method definition. If the generic method is defined on a generic type, the T:System.Reflection.MethodInfo is obtained from the generic type definition.

The following example defines two types. The first is a non-generic class, TestClass, includes a constructor, a method named GetValue, and a read-write property named GetValue. The second is a generic class named TestClass<T> that includes a constructor, a GetValue method, and a generic method, ConvertValue<Y>. Each constructor, method, and property accessor includes a call to the M:System.Reflection.MethodBase.GetCurrentMethod method.

using System;
using System.Reflection;

public class Example
{
   public static void Main()
   {
      var t = new TestClass();  
      Console.WriteLine(t.GetValue());
      t.Value = 10;
      Console.WriteLine(t.Value);
      Console.WriteLine();

      var tg =new Test<int>(200);
      Console.WriteLine(tg.GetValue());
      var b = tg.ConvertValue<Byte>();
      Console.WriteLine("{0} -> {1} ({2})", tg.GetValue().GetType().Name,
                        b, b.GetType().Name);
   }
}        

public class TestClass
{
   private Nullable<int> _value;

   public TestClass()
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
   }

   public TestClass(int value)
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
      _value = value;
   }

   public int Value
   {  
      get {
         MethodBase m = MethodBase.GetCurrentMethod();
         Console.WriteLine("Executing {0}.{1}", 
                           m.ReflectedType.Name, m.Name);
         return _value.GetValueOrDefault();
      }
      set {
         MethodBase m = MethodBase.GetCurrentMethod();
         Console.WriteLine("Executing {0}.{1}", 
                           m.ReflectedType.Name, m.Name);
         _value = value;
      }
   }

   public int GetValue()
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
      return this.Value;
   }
}

public class Test<T>
{
   private T value;

   public Test(T value)
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
      this.value = value;
   }

   public T GetValue()
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
      return value;
   }

   public Y ConvertValue<Y>() 
   {
      MethodBase m = MethodBase.GetCurrentMethod();
      Console.WriteLine("Executing {0}.{1}", 
                        m.ReflectedType.Name, m.Name);
      Console.Write("      Generic method: {0}, definition: {1}, Args: ", 
                        m.IsGenericMethod, m.IsGenericMethodDefinition);
      if (m.IsGenericMethod) {
         foreach (var arg in m.GetGenericArguments())
            Console.Write("{0} ", arg.Name);
      }
      Console.WriteLine();
      try {
         return (Y) Convert.ChangeType(value, typeof(Y));
      }
      catch (OverflowException) {
         throw; 
      }   
      catch (InvalidCastException) {
         throw;
      }   
   }   
}
// The example displays the following output:
//       Executing TestClass..ctor
//       Executing TestClass.GetValue
//       Executing TestClass.get_Value
//       0
//       Executing TestClass.set_Value
//       Executing TestClass.get_Value
//       10
//       
//       Executing Test`1..ctor
//       Executing Test`1.GetValue
//       200
//       Executing Test`1.ConvertValue
//             Generic method: True, definition: True, Args: Y
//       Executing Test`1.GetValue
//       Int32 -> 200 (Byte)

ReflectionPermission

when invoked late-bound through mechanisms such as M:System.Type.InvokeMember(System.String,System.Reflection.BindingFlags,System.Reflection.Binder,System.Object,System.Object[],System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,System.String[]). Associated enumeration: F:System.Security.Permissions.ReflectionPermissionFlag.MemberAccess.

.NET Framework
Disponible desde 1.1
Silverlight
Disponible desde 2.0
Windows Phone Silverlight
Disponible desde 7.0
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