ParameterInfo.ParameterType Propiedad

Definición

Espacio de nombres:

System.Reflection

Ensamblado:

System.Runtime.dll

Source:

ParameterInfo.cs

Obtiene el tipo (Type) de este parámetro.

public:
 virtual property Type ^ ParameterType { Type ^ get(); };

public virtual Type ParameterType { get; }

member this.ParameterType : Type

Public Overridable ReadOnly Property ParameterType As Type

Valor de propiedad

Type

Objeto Type que representa el tipo (Type) de este parámetro.

Ejemplos

En el ejemplo siguiente se muestra cómo obtener ParameterInfo objetos para los parámetros de un método y, a continuación, usar la ParameterType propiedad para mostrar el tipo de cada parámetro.

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::InteropServices;
public ref class parminfo
{
public:
   static void mymethod( int int1m, [Out]interior_ptr<String^> str2m, interior_ptr<String^> str3m )
   {
       *str2m = "in mymethod";
   }

};

int main()
{
   Console::WriteLine( "\nReflection.Parameterinfo" );
   
   //Get the ParameterInfo parameter of a function.
   //Get the type.
   Type^ Mytype = Type::GetType( "parminfo" );
   
   //Get and display the method.
   MethodBase^ Mymethodbase = Mytype->GetMethod( "mymethod" );
   Console::Write( "\nMymethodbase = {0}", Mymethodbase );
   
   //Get the ParameterInfo array.
   array<ParameterInfo^>^Myarray = Mymethodbase->GetParameters();
   
   //Get and display the ParameterInfo of each parameter.
   System::Collections::IEnumerator^ enum0 = Myarray->GetEnumerator();
   while ( enum0->MoveNext() )
   {
      ParameterInfo^ Myparam = safe_cast<ParameterInfo^>(enum0->Current);
      Console::Write( "\nFor parameter # {0}, the ParameterType is - {1}", Myparam->Position, Myparam->ParameterType );
   }

   return 0;
}

/*
This code produces the following output:

Reflection.Parameterinfo

Mymethodbase = Void mymethod(Int32, System.String ByRef, System.String ByRef)
For parameter # 0, the ParameterType is - System.Int32
For parameter # 1, the ParameterType is - System.String&
For parameter # 2, the ParameterType is - System.String&
*/

 using System;
 using System.Reflection;

 class parminfo
 {
    public static void mymethod (
       int int1m, out string str2m, ref string str3m)
    {
       str2m = "in mymethod";
    }

    public static int Main(string[] args)
    {
       Console.WriteLine("\nReflection.Parameterinfo");

       //Get the ParameterInfo parameter of a function.

       //Get the type.
       Type Mytype = Type.GetType("parminfo");

       //Get and display the method.
       MethodBase Mymethodbase = Mytype.GetMethod("mymethod");
       Console.Write("\nMymethodbase = " + Mymethodbase);

       //Get the ParameterInfo array.
       ParameterInfo[]Myarray = Mymethodbase.GetParameters();

       //Get and display the ParameterInfo of each parameter.
       foreach (ParameterInfo Myparam in Myarray)
       {
          Console.Write ("\nFor parameter # " + Myparam.Position
             + ", the ParameterType is - " + Myparam.ParameterType);
       }
       return 0;
    }
 }

 /*
 This code produces the following output:

Reflection.Parameterinfo

Mymethodbase = Void mymethod(int, System.String ByRef, System.String ByRef)
For parameter # 0, the ParameterType is - System.Int32
For parameter # 1, the ParameterType is - System.String&
For parameter # 2, the ParameterType is - System.String&
 */

Imports System.Reflection

Class parminfo
    
    Public Shared Sub mymethod(int1m As Integer, ByRef str2m As String, _
    ByRef str3m As String)
        str2m = "in mymethod"
    End Sub
       
    Public Shared Function Main() As Integer
        Console.WriteLine(ControlChars.CrLf + "Reflection.Parameterinfo")
        
        'Get the ParameterInfo parameter of a function.
        'Get the type.
        Dim Mytype As Type = GetType(parminfo)
        
        'Get and display the method.
        Dim Mymethodbase As MethodBase = Mytype.GetMethod("mymethod")
        Console.Write(ControlChars.CrLf _
           + "Mymethodbase = " + Mymethodbase.ToString())
        
        'Get the ParameterInfo array.
        Dim Myarray As ParameterInfo() = Mymethodbase.GetParameters()
        
        'Get and display the ParameterInfo of each parameter.
        Dim Myparam As ParameterInfo
        For Each Myparam In  Myarray
            Console.Write(ControlChars.CrLf _
               + "For parameter # " + Myparam.Position.ToString() _
               + ", the ParameterType is - " + Myparam.ParameterType.ToString())
        Next Myparam
        Return 0
    End Function
End Class

' This code produces the following output:
' 
' Reflection.Parameterinfo

' Mymethodbase = Void mymethod(Int32, System.String ByRef, System.String ByRef)
' For parameter # 0, the ParameterType is - System.Int32
' For parameter # 1, the ParameterType is - System.String&
' For parameter # 2, the ParameterType is - System.String&

Comentarios

Este método depende de metadatos opcionales y es posible que no esté disponible en todos los compiladores.

Para obtener la ParameterInfo matriz, primero obtenga el método o el constructor y, a continuación, llame a MethodBase.GetParameters.