Component Class (System.ComponentModel)

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Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

Component Class

Updated: November 2007

Provides the base implementation for the IComponent interface and enables object sharing between applications.

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

Syntax

Visual Basic (Declaration)

<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)> _
<ComVisibleAttribute(True)> _
Public Class Component _
    Inherits MarshalByRefObject _
    Implements IComponent, IDisposable

Visual Basic (Usage)

Dim instance As Component

[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
[ComVisibleAttribute(true)]
public class Component : MarshalByRefObject, IComponent, 
    IDisposable

Visual C++

[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
[ComVisibleAttribute(true)]
public ref class Component : public MarshalByRefObject, 
    IComponent, IDisposable

/** @attribute ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) */
/** @attribute ComVisibleAttribute(true) */
public class Component extends MarshalByRefObject implements IComponent, 
    IDisposable

JScript

public class Component extends MarshalByRefObject implements IComponent, IDisposable

Remarks

Component is the base class for all components in the common language runtime that marshal by reference. Component is remotable and derives from the MarshalByRefObject class. Component provides an implementation of the IComponent interface. The MarshalByValueComponent provides an implementation of IComponent that marshals by value.

You can host a Component in any object that implements the IContainer interface, and you can query and get services from its container. The container creates an ISite for each Component it contains. The container uses the site to manage the Component and is used by the Component to communicate with its container.

A Component should release resources explicitly by calls to its Dispose method, without waiting for automatic memory management through an implicit call to the Finalize method. When a Container is disposed, all components within the Container are also disposed.

Inheritance Hierarchy

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360

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

Version Information