Sys Namespace

Application Class

Provides a run-time object that exposes client events and manages client components that are registered with the application.

ApplicationLoadEventArgs Class

Used by the Application class to hold event arguments for the load event.

CancelEventArgs Class

Provides the base class for events that can be canceled.

Component Class

Provides the base class for the Control and Behavior classes, and for any other object whose lifetime should be managed by Microsoft ASP.NET AJAX.

CultureInfo Class

Represents a culture definition that can be applied to objects that accept a culture-related setting.

Debug Class

Provides debugging and tracing functionality for client ECMAScript (JavaScript) code.

EventArgs Class

Provides a base class for classes that are used by event sources to pass event argument information.

EventHandlerList Class

Creates a dictionary of client events for a component, with event names as keys and the associated handlers as values.

IContainer Interface

Provides a common interface for all components that can contain other components.

IDisposable Interface

Provides a common interface for the application-defined tasks of closing, releasing, or resetting resources held by instances of a registered Microsoft AJAX Library class.

INotifyDisposing Interface

Indicates that the type that implements the interface provides disposing notifications.

INotifyPropertyChange Interface

Defines the propertyChanged event.

PropertyChangedEventArgs Class

Used by the propertyChanged event to indicate which property has changed.

Sys.Res Object

Provides static, culture-neutral exception messages that are used by the Microsoft AJAX Library framework.

StringBuilder Class

Provides a mechanism to concatenate strings.

Sys Exceptions

Raises an Error Object that represents exceptions raised by the Microsoft AJAX Library framework. These exceptions are created dynamically by using the Error Object type extension functions and cannot be instantiated or invoked.