Activator.CreateInstance Method (Type, BindingFlags, Binder, Object[], CultureInfo, Object[]) Home
This page is specific to:.NET Framework Version:1.1
.NET Framework Class Library
Activator.CreateInstance Method (Type, BindingFlags, Binder, Object[], CultureInfo, Object[])

Creates an instance of the specified type using the constructor that best matches the specified parameters.

[Visual Basic]
Overloads Public Shared Function CreateInstance( _
   ByVal type As Type, _
   ByVal bindingAttr As BindingFlags, _
   ByVal binder As Binder, _
   ByVal args() As Object, _
   ByVal culture As CultureInfo, _
   ByVal activationAttributes() As Object _
) As Object
[C#]
public static object CreateInstance(
 Type type,
 BindingFlags bindingAttr,
 Binder binder,
 object[] args,
 CultureInfo culture,
 object[] activationAttributes
);
[C++]
public: static Object* CreateInstance(
 Type* type,
 BindingFlags bindingAttr,
 Binder* binder,
 Object* args __gc[],
 CultureInfo* culture,
 Object* activationAttributes __gc[]
);
[JScript]
public static function CreateInstance(
   type : Type,
 bindingAttr : BindingFlags,
 binder : Binder,
 args : Object[],
 culture : CultureInfo,
 activationAttributes : Object[]
) : Object;

Parameters

type
The type of object to create.
bindingAttr
A combination of zero or more bit flags that affect the search for the type constructor. If bindingAttr is zero, a case-sensitive search for public constructors is conducted.
binder
An object that uses bindingAttr and args to seek and identify the type constructor. If binder is a null reference (Nothing in Visual Basic), the default binder is used.
args
An array of arguments that match in number, order, and type the parameters of the constructor to invoke. If args is an empty array or a null reference (Nothing in Visual Basic), the constructor that takes no parameters (the default constructor) is invoked.
culture
Culture-specific information that governs the coercion of args to the formal types declared for the type constructor. If culture is a null reference (Nothing in Visual Basic), the CultureInfo for the current thread is used.
activationAttributes
An array of one or more attributes that can participate in activation.

Return Value

A reference to the newly created object.

Exceptions

Exception Type Condition
ArgumentNullException type is a null reference (Nothing in Visual Basic).
ArgumentException type is not a RuntimeType.
NotSupportedException type cannot be a TypeBuilder.

-or-

Creation of TypedReference, ArgIterator, and RuntimeArgumentHandle types is not supported.

-or-

activationAttributes is not an empty array and the type being created does not derive from MarshalByRefObject.

TargetInvocationException The constructor being called throws an exception.
MethodAccessException The caller does not have permission to call this constructor.
MemberAccessException Cannot create an instance of an abstract class or this member was invoked with a late-binding mechanism.
InvalidComObjectException COM type was not obtained through GetTypeFromProgID or GetTypeFromCLSID.
MissingMethodException No matching constructor was found.
COMException type is a COM object but the class identifier used to obtain the type is invalid, or the identified class is not registered.
TypeLoadException type is not a valid type.

Remarks

The constructor to be invoked must be accessible and provide the most specific match with the specified argument list under the constraints of the specified binder and binding attributes.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

  • SecurityPermission for the ability to call unmanaged code when creating an instance of a delegate. Associated enumeration: SecurityPermissionFlag/UnmanagedCode
  • ReflectionPermission for the ability to invoke operations on all type members. Associated enumeration: ReflectionPermissionFlag/MemberAccess

See Also

Activator Class | Activator Members | System Namespace | Activator.CreateInstance Overload List

© 2009 Microsoft Corporation. All rights reserved.   Terms of Use | Trademarks | Privacy Statement
Page view tracker
Rate the Lightweight library
x
Lightweight builds on ScriptFree (loband) by adding features you've requested: a SearchBox and default code language selection.
Do you like the SearchBox?
Do you like the tabbed code blocks?
How useful is this topic?
Tell us more.
Thanks
x
You're helping to improve MSDN Online.
Feedback
Switch View
Classic
Lightweight Beta
ScriptFree
Switch View