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ModuleBuilder.DefineType Method (String, TypeAttributes, Type, PackingSize)

Constructs a TypeBuilder given the type name, the attributes, the type that the defined type extends, and the packing size of the type.

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

public TypeBuilder DefineType(
	string name,
	TypeAttributes attr,
	Type parent,
	PackingSize packsize
)

Parameters

name
Type: System.String
The full path of the type. name cannot contain embedded nulls.
attr
Type: System.Reflection.TypeAttributes
The attributes of the defined type.
parent
Type: System.Type
The type that the defined type extends.
packsize
Type: System.Reflection.Emit.PackingSize
The packing size of the type.

Return Value

Type: System.Reflection.Emit.TypeBuilder
A TypeBuilder object.

ExceptionCondition
ArgumentException

A type with the given name exists in the parent assembly of this module.

-or-

Nested type attributes are set on a type that is not nested.

ArgumentNullException

name is null.

Type names must be unique within an assembly. You cannot have two types with the same name in two different modules of an assembly.

NoteNote

Starting with the .NET Framework version 2.0 Service Pack 1, this member no longer requires ReflectionPermission with the ReflectionPermissionFlag.ReflectionEmit flag. (See Security Issues in Reflection Emit.) To use this functionality, your application should target the .NET Framework version 3.5 or later.

The following example creates a TypeBuilder in the current dynamic module using CreateType, builds and completes the type, and saves the assembly.


AssemblyName asmname = new AssemblyName();
asmname.Name = "assemfilename.exe";        
AssemblyBuilder asmbuild = System.Threading.Thread.GetDomain().
            DefineDynamicAssembly(asmname, AssemblyBuilderAccess.RunAndSave);
ModuleBuilder modbuild = asmbuild.DefineDynamicModule( "modulename",
   "assemfilename.exe" );
TypeBuilder typebuild1 = modbuild.DefineType( "typename" );
typebuild1.CreateType();
asmbuild.Save( "assemfilename.exe" );


.NET Framework

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

.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.

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