FieldInfo.IsFamily Propriedade

Definição

Namespace:

System.Reflection

Assemblies:

netstandard.dll, System.Runtime.dll

Origem:

FieldInfo.cs

Obtém um valor que indica se a visibilidade desse campo é descrita por Family; ou seja, o campo é visível apenas dentro de sua classe e classes derivadas.

public:
 property bool IsFamily { bool get(); };

public bool IsFamily { get; }

member this.IsFamily : bool

Public ReadOnly Property IsFamily As Boolean

Valor da propriedade

Boolean

true se o acesso a esse campo for exatamente descrito por Family; caso contrário, false.

Exemplos

O exemplo de código a seguir define campos com diferentes níveis de visibilidade e exibe os valores de suas IsAssemblyIsFamilyIsFamilyOrAssemblypropriedades e IsFamilyAndAssembly propriedades.

using System;
using System.Reflection;

public class Example
{
    public int f_public;
    internal int f_internal;
    protected int f_protected;
    protected internal int f_protected_public;
    private protected int f_private_protected;

    public static void Main()
    {
        Console.WriteLine("\n{0,-30}{1,-18}{2}", "", "IsAssembly", "IsFamilyOrAssembly");
        Console.WriteLine("{0,-21}{1,-18}{2,-18}{3}\n",
            "", "IsPublic", "IsFamily", "IsFamilyAndAssembly");

        foreach (FieldInfo f in typeof(Example).GetFields(
            BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public))
        {
            Console.WriteLine("{0,-21}{1,-9}{2,-9}{3,-9}{4,-9}{5,-9}",
                f.Name,
                f.IsPublic,
                f.IsAssembly,
                f.IsFamily,
                f.IsFamilyOrAssembly,
                f.IsFamilyAndAssembly
            );
        }
    }
}

/* This code example produces output similar to the following:

                              IsAssembly        IsFamilyOrAssembly
                     IsPublic          IsFamily          IsFamilyAndAssembly

f_public             True     False    False    False    False
f_internal           False    True     False    False    False
f_protected          False    False    True     False    False
f_protected_public   False    False    False    True     False
f_private_protected  False    False    False    False    True
 */

Imports System.Reflection

Public class Example

    Public f_Public As Integer
    Friend f_Friend As Integer 
    Protected f_Protected As Integer
    Protected Friend f_Protected_Friend As Integer
    Private Protected f_Private_Protected() As Integer

    Public Shared Sub Main()
    
        Console.WriteLine(vbCrLf & _
            "{0,-30}{1,-18}{2}", "", "IsAssembly", "IsFamilyOrAssembly") 
        Console.WriteLine("{0,-21}{1,-18}{2,-18}{3}" & vbCrLf, _
            "", "IsPublic", "IsFamily", "IsFamilyAndAssembly")
   
        For Each f As FieldInfo In GetType(Example).GetFields( _
            BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.Public)
        
            Console.WriteLine("{0,-21}{1,-9}{2,-9}{3,-9}{4,-9}{5,-9}", _
                f.Name, _
                f.IsPublic, _
                f.IsAssembly, _
                f.IsFamily, _
                f.IsFamilyOrAssembly, _
                f.IsFamilyAndAssembly _
            )
        Next
    End Sub
End Class

' This code example produces output similar to the following:
'
'                              IsAssembly        IsFamilyOrAssembly
'                     IsPublic          IsFamily          IsFamilyAndAssembly
'
'f_Public             True     False    False    False    False
'f_Friend             False    True     False    False    False
'f_Protected          False    False    True     False    False
'f_Protected_Friend   False    False    False    True     False
'f_Private_Protected  False    False    False    False    True

Comentários

A visibilidade de um campo é exatamente descrita se FieldAttributes.Family o único modificador de visibilidade for protected. Essa propriedade é false para campos que estão protected internal em C# (Protected Friend no Visual Basic); use a IsFamilyOrAssembly propriedade para identificar esses campos.

Confira também

• FieldAttributes
• Type
• IsAssembly
• IsFamilyOrAssembly
• IsFamilyAndAssembly