ExtenderControl Class (System.Web.UI)

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.NET Framework Class Library

ExtenderControl Class

Updated: November 2007

Provides an abstract base class for an extender control.

Namespace: System.Web.UI
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)

Syntax

Visual Basic (Declaration)

<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public MustInherit Class ExtenderControl _
    Inherits Control _
    Implements IExtenderControl

Visual Basic (Usage)

Dim instance As ExtenderControl

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public abstract class ExtenderControl : Control, 
    IExtenderControl

Visual C++

[AspNetHostingPermissionAttribute(SecurityAction::LinkDemand, Level = AspNetHostingPermissionLevel::Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction::InheritanceDemand, Level = AspNetHostingPermissionLevel::Minimal)]
public ref class ExtenderControl abstract : public Control, 
    IExtenderControl

/** @attribute AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal) */
/** @attribute AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal) */
public abstract class ExtenderControl extends Control implements IExtenderControl

JScript

public abstract class ExtenderControl extends Control implements IExtenderControl

ASP.NET

<asp:ExtenderControl />

Remarks

The ExtenderControl class enables you to programmatically add AJAX functionality to an ASP.NET server control. The ExtenderControl inherits from the Control class and implements the IExtenderControl interface. The Control class defines the properties, methods, and events that are shared by all ASP.NET server controls. The IExtenderControl interface is an abstract class, which you cannot instantiate directly. Instead, you create a derived type.

Examples

The following example shows how to use the ExtenderControl class. For a tutorial related to this example, see Creating an Extender Control to Associate a Client Behavior with a Web Server Control.

Inheritance Hierarchy

System..::.Object
System.Web.UI..::.Control
System.Web.UI..::.ExtenderControl

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 Server 2003

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

.NET Framework

Supported in: 3.5

Reference

ExtenderControl Members

System.Web.UI Namespace

Control

IExtenderControl

Product Families

Resources

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