MethodBase.IsFamily Property

 

Gets a value indicating whether the visibility of this method or constructor is described by MethodAttributes.Family; that is, the method or constructor is visible only within its class and derived classes.

Namespace:   System.Reflection
Assembly:  mscorlib (in mscorlib.dll)

Public ReadOnly Property IsFamily As Boolean

Property Value

Type: System.Boolean

true if access to this method or constructor is exactly described by MethodAttributes.Family; otherwise, false.

The visibility of a method or constructor is exactly described by MethodAttributes.Family if the only visibility modifier is protected. This property is false for methods that are protected internal in C# (Protected Friend in Visual Basic, protected public in C++); use the IsFamilyOrAssembly property to identify such methods.

The following code example defines methods with varying levels of visibility, and displays the values of their IsAssembly, IsFamily, IsFamilyOrAssembly, and IsFamilyAndAssembly properties.

System_CAPS_noteNote

The Visual Basic and C# languages cannot define methods with MethodAttributes.FamANDAssem visibility; that access level appears only in the C++ example.

Imports System
Imports System.Reflection

Public class Example

    Public Sub m_Public() 
    End Sub
    Friend Sub m_Friend() 
    End Sub
    Protected Sub m_Protected() 
    End Sub
    Protected Friend Sub m_Protected_Friend() 
    End Sub

    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 m As MethodBase In GetType(Example).GetMethods( _
            BindingFlags.Instance Or BindingFlags.NonPublic Or BindingFlags.Public)

            If Left(m.Name, 1) = "m"

                Console.WriteLine("{0,-21}{1,-9}{2,-9}{3,-9}{4,-9}{5,-9}", _
                    m.Name, _
                    m.IsPublic, _
                    m.IsAssembly, _
                    m.IsFamily, _
                    m.IsFamilyOrAssembly, _
                    m.IsFamilyAndAssembly _
                )
            End If
        Next
    End Sub
End Class

' This code example produces output similar to the following:
'
'                              IsAssembly        IsFamilyOrAssembly
'                     IsPublic          IsFamily          IsFamilyAndAssembly
'
'm_Public             True     False    False    False    False
'm_Friend             False    True     False    False    False
'm_Protected          False    False    True     False    False
'm_Protected_Friend   False    False    False    True     False

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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