This documentation is archived and is not being maintained.

FieldInfo.IsFamilyAndAssembly Property

Gets a value indicating whether the visibility of this field is described by FieldAttributes.FamANDAssem; that is, the field can be accessed from derived classes, but only if they are in the same assembly.

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

public bool IsFamilyAndAssembly { get; }
/** @property */
public final boolean get_IsFamilyAndAssembly ()

public final function get IsFamilyAndAssembly () : boolean

Not applicable.

Property Value

true if access to this field is exactly described by FieldAttributes.FamANDAssem; otherwise, false.

If a field has FamANDAssem level visibility, it can be called from any member in a derived class that is also in the same assembly, but not from any other type.

The visibility of a field is exactly described by FieldAttributes.FamANDAssem if the visibility modifier is protected private in C++. Fields with this visibility cannot be defined in Visual Basic or C#.

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

NoteNote:

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

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;

    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
 */

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
Show: