MethodBase.IsFamilyOrAssembly MethodBase.IsFamilyOrAssembly MethodBase.IsFamilyOrAssembly MethodBase.IsFamilyOrAssembly Property

定義

取得值,指出 FamORAssem 是否描述此方法或建構函式的潛在可視性;亦即,無論該方法或建構函式位於何處,衍生類別以及相同組件中的類別都可以呼叫它們。Gets a value indicating whether the potential visibility of this method or constructor is described by FamORAssem; that is, the method or constructor can be called by derived classes wherever they are, and by classes in the same assembly.

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

屬性值

如果 FamORAssem 有精確描述這個方法或建構函式 (Constructor) 的存取權限則為 true,否則為 falsetrue if access to this method or constructor is exactly described by FamORAssem; otherwise, false.

實作

範例

下列程式碼範例定義具有不同的層級的可見性的方法,並顯示的值及其IsAssemblyIsFamilyIsFamilyOrAssembly,和IsFamilyAndAssembly屬性。The following code example defines methods with varying levels of visibility, and displays the values of their IsAssembly, IsFamily, IsFamilyOrAssembly, and IsFamilyAndAssembly properties.

注意

Visual Basic 和 C# 語言不能定義具有方法MethodAttributes.FamANDAssem可見性; 的存取層級只會出現在 c + + 範例。The Visual Basic and C# languages cannot define methods with MethodAttributes.FamANDAssem visibility; that access level appears only in the C++ example.

using namespace System;
using namespace System::Reflection;

public ref class Example
{
public:
    void m_public() {};
internal:
    void m_internal() {};
protected:
    void m_protected() {};
protected public:
    void m_protected_public() {};
protected private:
    void m_protected_private() {};
};

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");

    for each (MethodBase^ m in Example::typeid->GetMethods(
        BindingFlags::Instance | BindingFlags::NonPublic | BindingFlags::Public))
    {
        if (m->Name->Substring(0, 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
            );
        }
    }
}

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

                              IsAssembly        IsFamilyOrAssembly
                     IsPublic          IsFamily          IsFamilyAndAssembly

m_public             True     False    False    False    False
m_internal           False    True     False    False    False
m_protected          False    False    True     False    False
m_protected_public   False    False    False    True     False
m_protected_private  False    False    False    False    True
 */
using System;
using System.Reflection;

public class Example
{
    public void m_public() {}
    internal void m_internal() {}
    protected void m_protected() {}
    protected internal void m_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 (MethodBase m in typeof(Example).GetMethods(
            BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public))
        {
            if (m.Name.Substring(0, 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
                );
            }
        }
    }
}

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

                              IsAssembly        IsFamilyOrAssembly
                     IsPublic          IsFamily          IsFamilyAndAssembly

m_public             True     False    False    False    False
m_internal           False    True     False    False    False
m_protected          False    False    True     False    False
m_protected_public   False    False    False    True     False
 */
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

備註

如果型別成員具有MethodAttributes.FamORAssem可見性,它可以呼叫從衍生類別中的任何成員或相同的組件中的任何成員,但不是能從任何其他型別。If a type member has MethodAttributes.FamORAssem visibility, it can be called from any member in a derived class or any member in the same assembly, but not from any other type.

其類型的可見性受限於實際的可見性的方法。The actual visibility of a method is limited by the visibility of its type. IsFamilyOrAssembly屬性可能是true方法,但如果它是私用巢狀類型的方法則包含類型外部看不到 方法。The IsFamilyOrAssembly property might be true for a method, but if it is a method of a private nested type then the method is not visible outside the containing type.

可見性的方法或建構函式已精確描述MethodAttributes.FamORAssem可視性修飾詞是否protected internalC# 中 (Protected Friend在 Visual Basic 中protected publicc + + 中)。The visibility of a method or constructor is exactly described by MethodAttributes.FamORAssem if the visibility modifier is protected internal in C# (Protected Friend in Visual Basic, protected public in C++).

適用於

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