MethodBase.IsFamily Properti
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mendapatkan nilai yang menunjukkan apakah visibilitas metode atau konstruktor ini dijelaskan oleh Family; yaitu, metode atau konstruktor hanya terlihat dalam kelas dan kelas turunannya.
public:
property bool IsFamily { bool get(); };
public bool IsFamily { get; }
member this.IsFamily : bool
Public ReadOnly Property IsFamily As Boolean
Nilai Properti
true
jika akses ke metode atau konstruktor ini dijelaskan dengan tepat oleh Family; jika tidak, false
.
Penerapan
Contoh
Contoh kode berikut mendefinisikan metode dengan berbagai tingkat visibilitas, dan menampilkan nilai properti , , IsFamilyIsFamilyOrAssembly, dan IsFamilyAndAssembly merekaIsAssembly.
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
Keterangan
Visibilitas metode atau konstruktor dijelaskan dengan tepat oleh MethodAttributes.Family jika satu-satunya pengubah visibilitas adalah protected
. Properti ini untuk false
metode yang ada protected internal
di C# (Protected Friend
di Visual Basic, protected public
di C++); gunakan properti untuk mengidentifikasi metode tersebut IsFamilyOrAssembly .