TypeBuilder.DefineNestedType Method (String, TypeAttributes, Type, Type[])

Defines a nested type given its name, attributes, the type that it extends, and the interfaces that it implements.

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

public TypeBuilder DefineNestedType (
	string name,
	TypeAttributes attr,
	Type parent,
	Type[] interfaces
/** @attribute ComVisibleAttribute(true) */ 
public TypeBuilder DefineNestedType (
	String name, 
	TypeAttributes attr, 
	Type parent, 
	Type[] interfaces
public function DefineNestedType (
	name : String, 
	attr : TypeAttributes, 
	parent : Type, 
	interfaces : Type[]
) : TypeBuilder



The short name of the type. name cannot contain embedded nulls.


The attributes of the type.


The type that the nested type extends.


The interfaces that the nested type implements.

Return Value

The defined nested type.

Exception typeCondition


The nested attribute is not specified.


This type is sealed.


This type is an array.


This type is an interface but the nested type is not an interface.


The length of name is zero.


name is a null reference (Nothing in Visual Basic) or a null interface is specified in the interfaces array.


The type was previously created using CreateType.

The nested type needs to be complete before you can reflect on it using GetMembers, GetNestedType, or GetNestedTypes.

See the description of CreateType for the order in which nested types and nesting types should be completed.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0