MethodBase.IsAssembly プロパティ

定義

このメソッドまたはコンストラクターを参照できる範囲が Assembly によって示されるかどうかを表す値を取得します。ここで判定されるのは、このメソッドまたはコンストラクターが同じアセンブリ内の他の型でのみ参照でき、アセンブリ外部の派生型では参照できないものであることです。Gets a value indicating whether the potential visibility of this method or constructor is described by Assembly; that is, the method or constructor is visible at most to other types in the same assembly, and is not visible to derived types outside the assembly.

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

プロパティ値

Boolean

このメソッドまたはコンストラクターを参照可能な範囲が Assembly によって正しく示される場合は true。それ以外の場合は falsetrue if the visibility of this method or constructor is exactly described by Assembly; otherwise, false.

実装

次のコード例では、さまざまなレベルの可視性を持つメソッドを定義し、、、、およびの各プロパティの値を表示し IsAssembly IsFamily IsFamilyOrAssembly IsFamilyAndAssembly ます。The following code example defines methods with varying levels of visibility, and displays the values of their IsAssembly, IsFamily, IsFamilyOrAssembly, and IsFamilyAndAssembly properties.

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() {}
    private protected void m_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 (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
m_private_protected  False    False    False    False    True
 */
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
    Private Protected Sub m_Private_Protected() 
    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
'm_Private_Protected  False    False    False    False    True

注釈

メソッドの実際の可視性は、その型の可視性によって制限されます。The actual visibility of a method is limited by the visibility of its type. プロパティは、 IsAssembly メソッドの場合もあり true ますが、入れ子になったプライベート型のメソッドである場合、メソッドは、それを含んでいる型の外部では参照できません。The IsAssembly 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.

MethodAttributes.Assembly唯一の可視性修飾子が (Visual Basic) の場合、メソッドまたはコンストラクターの可視性はによって正確に記述され internal Friend ます。The visibility of a method or constructor is exactly described by MethodAttributes.Assembly if the only visibility modifier is internal (Friend in Visual Basic). このプロパティは false protected internal 、C# のメソッド ( Protected Friend C++ では Visual Basic) 用です protected public 。この IsFamilyOrAssembly ようなメソッドを特定するには、プロパティを使用します。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.

適用対象

こちらもご覧ください