FieldInfo.IsPublic FieldInfo.IsPublic FieldInfo.IsPublic FieldInfo.IsPublic Property

Définition

Obtient une valeur indiquant si le champ est public.Gets a value indicating whether the field is public.

public:
 property bool IsPublic { bool get(); };
public bool IsPublic { get; }
member this.IsPublic : bool
Public ReadOnly Property IsPublic As Boolean

Valeur de propriété

true si le champ est public ; sinon, false.true if this field is public; otherwise, false.

Implémente

Exemples

L’exemple suivant retourne une valeur indiquant si le champ de la classe est public ou privé.The following example returns a value indicating whether or not the field of the class is public or private.

using namespace System;
using namespace System::Reflection;

// Make two fields.
// private
public ref class Myfielda
{
private:
   String^ SomeField;

public:
   Myfielda()
      : SomeField( "private field" )
   {}


   property String^ Field 
   {
      String^ get()
      {
         return SomeField;
      }

   }

};


// public
public ref class Myfieldb
{
public:
   String^ SomeField;
   Myfieldb()
      : SomeField( "public field" )
   {}


   property String^ Field 
   {
      String^ get()
      {
         return SomeField;
      }

   }

};

int main()
{
   Console::WriteLine( "\nReflection.FieldInfo" );
   Myfielda^ myfielda = gcnew Myfielda;
   Myfieldb^ myfieldb = gcnew Myfieldb;
   
   // Get the Type and FieldInfo.
   Type^ MyTypea = Type::GetType( "Myfielda" );
   FieldInfo^ Myfieldinfoa = MyTypea->GetField( "SomeField", static_cast<BindingFlags>(BindingFlags::NonPublic | BindingFlags::Instance) );
   Type^ MyTypeb = Type::GetType( "Myfieldb" );
   FieldInfo^ Myfieldinfob = MyTypeb->GetField( "SomeField" );
   
   // Get and display the IsPublic and IsPrivate property values.
   Console::Write( "\n{0}.", MyTypea->FullName );
   Console::Write( "{0} - ", Myfieldinfoa->Name );
   Console::Write( "{0}", myfielda->Field );
   Console::Write( "\n   IsPublic = {0}", Myfieldinfoa->IsPublic );
   Console::Write( "\n   IsPrivate = {0}", Myfieldinfoa->IsPrivate );
   Console::Write( "\n{0}.", MyTypeb->FullName );
   Console::Write( "{0} - ", Myfieldinfob->Name );
   Console::Write( "{0};", myfieldb->Field );
   Console::Write( "\n   IsPublic = {0}", Myfieldinfob->IsPublic );
   Console::Write( "\n   IsPrivate = {0}", Myfieldinfob->IsPrivate );
   return 0;
}

using System;
using System.Reflection;


 // Make two fields.
public
    class Myfielda // private
{
    private string SomeField = "private field";
    public string Field
    {
        get{return SomeField;}
    }
}

public
    class Myfieldb // public
{
    public string SomeField = "public field";
}
 
public
    class Myfieldinfo
{
    public static int Main()
    {
        Console.WriteLine("\nReflection.FieldInfo");
        Myfielda Myfielda = new Myfielda();
        Myfieldb Myfieldb = new Myfieldb();
  
        // Get the Type and FieldInfo.
        Type MyTypea = typeof(Myfielda);
        FieldInfo Myfieldinfoa = MyTypea.GetField("SomeField", 
            BindingFlags.NonPublic|BindingFlags.Instance);
        Type MyTypeb = typeof(Myfieldb);
        FieldInfo Myfieldinfob = MyTypeb.GetField("SomeField");
  
        // Get and display the IsPublic and IsPrivate property values.
        Console.Write("\n{0}.", MyTypea.FullName);
        Console.Write("{0} - ", Myfieldinfoa.Name);
        Console.Write("{0}", Myfielda.Field);
        Console.Write("\n   IsPublic = {0}", Myfieldinfoa.IsPublic);
        Console.Write("\n   IsPrivate = {0}", Myfieldinfoa.IsPrivate);
  
        Console.Write("\n{0}.", MyTypeb.FullName);
        Console.Write("{0} - ", Myfieldinfob.Name);
        Console.Write("{0};", Myfieldb.SomeField);
        Console.Write("\n   IsPublic = {0}", Myfieldinfob.IsPublic);
        Console.Write("\n   IsPrivate = {0}", Myfieldinfob.IsPrivate);
  
        return 0;
    }
}
Imports System.Reflection

' Make two fields.
Public Class Myfielda
    ' Make a private field.
    Private SomeField As String = "private field"

    Public ReadOnly Property Field() As String
        Get
            Return SomeField
        End Get
    End Property
End Class 'Myfielda

Public Class Myfieldb
    ' Make a public field.
    Public SomeField As String = "public field"
End Class 'Myfieldb

Public Class Myfieldinfo

    Public Shared Function Main() As Integer
        Console.WriteLine("Reflection.FieldInfo")
        Console.WriteLine()
        Dim Myfielda As New Myfielda()
        Dim Myfieldb As New Myfieldb()

        ' Get the Type and FieldInfo.
        Dim MyTypea As Type = GetType(Myfielda)
        Dim Myfieldinfoa As FieldInfo = MyTypea.GetField("SomeField", _
            BindingFlags.NonPublic Or BindingFlags.Instance)
        Dim MyTypeb As Type = GetType(Myfieldb)
        Dim Myfieldinfob As FieldInfo = MyTypeb.GetField("SomeField")

        ' Get and display the IsPublic and IsPrivate property values.
        Console.WriteLine("{0}.{1} - {2}", MyTypea.FullName, Myfieldinfoa.Name, _
            Myfielda.Field)
        Console.WriteLine("   IsPublic = {0}", Myfieldinfoa.IsPublic)
        Console.WriteLine("   IsPrivate = {0}", Myfieldinfoa.IsPrivate)
        Console.WriteLine()
        Console.WriteLine("{0}.{1} - {2}", MyTypeb.FullName, Myfieldinfob.Name, _
            Myfieldb.SomeField)
        Console.WriteLine("   IsPublic = {0}", Myfieldinfob.IsPublic)
        Console.WriteLine("   IsPrivate = {0}", Myfieldinfob.IsPrivate)

        Return 0
    End Function 'Main
End Class 'Myfieldinfo

Remarques

Les champs publics sont accessibles partout où leurs classes correspondantes sont visibles.Public fields are accessible everywhere their corresponding classes are visible.

La IsPublic propriété est définie lorsque l' FieldAttributes.Public attribut est défini.The IsPublic property is set when the FieldAttributes.Public attribute is set.

Pour récupérer la IsPublic propriété, commencez par récupérer la Typeclasse.To get the IsPublic property, first get the class Type. À partir Typede la, FieldInforécupérez le.From the Type, get the FieldInfo. À partir FieldInfode la, IsPublic récupérez la propriété.From the FieldInfo, get the IsPublic property. Si le champ n’est pas public, il est protégé et ne peut pas être facilement accessible.If the field is other than public, it is protected and cannot be readily accessed. Pour accéder à un champ non public, affectez NonPublicla BindingFlags valeur à BindingFlags.Instance , BindingFlags.Staticspécifiez ou, et utilisez GetField -la pour la méthode.To access a nonpublic field, set the BindingFlags to NonPublic, specify either BindingFlags.Instance or BindingFlags.Static, and use this for the GetField method.

S’applique à

Voir aussi