Sys Namespace

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Provides the root namespace for ASP.NET AJAX.

Types

Name

Description

Sys.Application Class

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

Sys.ApplicationLoadEventArgs Class

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

Sys.Browser Class

Provides information about the current Web browser.

Sys.CancelEventArgs Class

Provides the base class for events that can be canceled.

Sys.CollectionChange Class

Describes a change in a collection.

Sys.CommandEventArgs Class

Provides a class for command events.

Sys.Component Class

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

Sys.CultureInfo Class

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

Sys.Debug Class

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

Sys.EventArgs Class

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

Sys.EventHandlerList Class

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

Sys.HistoryEventArgs Class

This class is used by the Sys.Application Class to hold event arguments for the navigate event.

Sys.IContainer Interface

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

Sys.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.

Sys.INotifyDisposing Interface

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

Sys.INotifyPropertyChange Interface

Defines the propertyChanged event.

Sys.NotifyCollectionChangedAction Enumeration

Describes how a collection has changed.

Sys.NotifyCollectionChangedEventArgs Class

Describes how the collection was changed.

Sys.Observer Class

Adds updating and managing functionality to target objects such as arrays, DOM elements, and objects.

Sys.PropertyChangedEventArgs Class

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

Sys.Res Class

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

Sys.StringBuilder Class

Provides a mechanism to concatenate strings.

Sys Exception Types

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