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Type::IsNested Property

Gets a value indicating whether the current Type object represents a type whose definition is nested inside the definition of another type.

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

property bool IsNested {
	bool get ();

Property Value

Type: System::Boolean
true if the Type is nested inside another type; otherwise, false.

The IsNested property returns true for all nested types, regardless of visibility. To test for nesting and visibility at the same time, use the related properties IsNestedAssembly, IsNestedFamily, IsNestedFamANDAssem, IsNestedFamORAssem, IsNestedPrivate, or IsNestedPublic.


The VisibilityMask enumeration member selects the visibility attributes for a type.

The following code example displays the value of the IsNested property for both a protected nested class and a public nested class.

using namespace System;

public ref class Example
   ref class NestedProtected{};

   ref class NestedPublic{};

   static void Main()
      Type^ t = NestedProtected::typeid;
      Console::WriteLine( L"Is {0} nested? {1}",
         t->FullName, t->IsNested );
      t = NestedPublic::typeid;
      Console::WriteLine( L"Is {0} nested? {1}",
         t->FullName, t->IsNested );


int main()

/* This example produces the following output:

Is Example+NestedProtected nested? True
Is Example+NestedPublic nested? True

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.