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Type.GetNestedTypes Method (BindingFlags)

When overridden in a derived class, searches for the types nested in the current Type, using the specified binding constraints.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public abstract Type[] GetNestedTypes(
	BindingFlags bindingAttr
)

Parameters

bindingAttr
Type: System.Reflection.BindingFlags

A bitmask comprised of one or more BindingFlags that specify how the search is conducted.

-or-

Zero, to return null.

Return Value

Type: System.Type[]
An array of Type objects representing all the types nested in the current Type that match the specified binding constraints (the search is not recursive), or an empty array of type Type, if no nested types are found that match the binding constraints.

Implements

_Type.GetNestedTypes(BindingFlags)

The search for nested types is not recursive.

The GetNestedTypes method does not return types in a particular order, such as alphabetical or declaration order. Your code must not depend on the order in which types are returned, because that order varies.

The following BindingFlags filter flags can be used to define which nested types to include in the search:

  • You must specify either BindingFlags.Public or BindingFlags.NonPublic to get a return.

  • Specify BindingFlags.Public to include public nested types in the search.

  • Specify BindingFlags.NonPublic to include non-public nested types (that is, private, internal, and protected nested types) in the search.

This method returns only the nested types of the current type. It does not search the base classes of the current type. To find types that are nested in base classes, you must walk the inheritance hierarchy, calling GetNestedTypes at each level.

BindingFlags.Instance and BindingFlags.Static are ignored.

Calling this method with only the BindingFlags.Public flag or only the BindingFlags.NonPublic flag will return the specified nested types and does not require any other flags.

See System.Reflection.BindingFlags for more information.

If the current Type represents a type parameter in the definition of a generic type or generic method, this method searches the nested types of the class constraint.

If a nested type is generic, this method returns its generic type definition. This is true even if the enclosing generic type is a closed constructed type.

NoteNote

If the current Type represents a generic type defined in C#, Visual Basic, or C++, its nested types are all generic even if they have no generic parameters of their own. This is not necessarily true of nested types defined in dynamic assemblies or compiled with the Ilasm.exe (IL Assembler).

For information on nested generic types, and on constructing nested generic types from their generic type definitions, see MakeGenericType.

The following example creates two nested public classes and two nested protected classes, and displays information for classes that match the specified binding constraints.


using System;
using System.Reflection;
using System.Reflection.Emit;

// Create a class with two nested public classes and two nested protected classes. 
public class MyTypeClass
{
    public class Myclass1
    {
    }
    public class Myclass2 
    {
    }
    protected class MyClass3
    {
    }
    protected class MyClass4
    {
    }
}

public class TypeMain
{
    public static void Main() 
    {
        Type myType =(typeof(MyTypeClass));
        // Get the public nested classes.
        Type[] myTypeArray = myType.GetNestedTypes(BindingFlags.Public|BindingFlags.Instance);
        Console.WriteLine("The number of nested public classes is {0}.", myTypeArray.Length);
        // Display all the public nested classes.
        DisplayTypeInfo(myTypeArray);
        // Get the nonpublic nested classes.
        Type[] myTypeArray1 = myType.GetNestedTypes(BindingFlags.NonPublic|BindingFlags.Instance);
        Console.WriteLine("The number of nested protected classes is {0}.", myTypeArray1.Length);
        // Display all the nonpublic nested classes.
        DisplayTypeInfo(myTypeArray1);		
    }
    public static void DisplayTypeInfo(Type[] myArrayType)
    {
        // Display the information for all the nested classes. 
        for(int i=0;i<myArrayType.Length;i++)
        {
            Type myType = (Type)myArrayType[i];
            Console.WriteLine("The name of the nested class is {0}.", myType.ToString());
        }
    }

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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