The Sys.WebForms namespace contains classes related to partial-page rendering in the Microsoft Ajax Library.
Types
| Name | Description | 
|---|---|
| Used by the beginRequest event of the PageRequestManager class to pass argument information to event handlers. | |
| Used by the endRequest event of the PageRequestManager class to pass argument information to event handlers. | |
| Used by the initializeRequest event of the PageRequestManager class to pass argument information to event handlers. | |
| Used by the pageLoaded event of the PageRequestManager class to send event data that represents the UpdatePanel controls that were updated and created in the most recent postback. | |
| Used by the pageLoading event of the PageRequestManager class to send event data that represents the UpdatePanel controls that are being updated and deleted as a result of the most recent postback. | |
| Manages client partial-page updates of server UpdatePanel controls. In addition, defines properties, events, and methods that can be used to customize a Web page with client script. | |
| Defines exceptions that can occur during partial-page updates. |