TypeDescriptor::CreateInstance Method (IServiceProvider^, Type^, array<Type^>^, array<Object^>^)

.NET Framework (current version)

Creates an object that can substitute for another data type.

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

Syntax

public:
static Object^ CreateInstance(
	IServiceProvider^ provider,
	Type^ objectType,
	array<Type^>^ argTypes,
	array<Object^>^ args
)

Parameters

provider: Type: System::IServiceProvider^
The service provider that provides a TypeDescriptionProvider service. This parameter can be null.

objectType: Type: System::Type^
The Type of object to create.

argTypes: Type: array<System::Type^>^
An optional array of parameter types to be passed to the object's constructor. This parameter can be null or an array of zero length.

args: Type: array<System::Object^>^
An optional array of parameter values to pass to the object's constructor. If not null, the number of elements must be the same as argTypes.

Return Value

Type: System::Object^

An instance of the substitute data type if an associated TypeDescriptionProvider is found; otherwise, null.

Exceptions

Exception	Condition
ArgumentNullException	objectType is null, or args is null when argTypes is not null.
ArgumentException	argTypes and args have different number of elements.

The CreateInstance method will search for a TypeDescriptionProvider that is associated with the specified objectType data type. This method first tries to obtain a type description provider from the provider parameter. If this fails, it searches its own internal tables for a provider (these entries were created through previous calls to AddProvider). If it finds a provider, this method will delegate the creation call to that object.

Notes to Inheritors:

If the derived class does not provide a substitute instance, this method should call the base implementation.

Version Information

.NET Framework
Available since 2.0