Service Classes and Interfaces

Use

The table below contains service classes and interfaces that provide standard services for the development of Web Dynpro applications. For more information, see the documentation defined for each object in the system.

Service Classes and Interfaces
Technical Name	Description
CL_WD_CONTEXT_SERVICES	Identifies context changes
CL_WD_DYNAMIC_TOOL	Contains various methods that are helpful for your first steps in dynamic programming, as well as help methods for tables and trees, and so on.
CL_WD_COMPONENT_ASSISTANCE	Creates and displays translatable texts
CL_WD_RUNTIME_SERVICES	Standard services such as file download, which is also possible without using the UI element FileDownload.
CL_WD_UTILITIES	Method for following functions: Calculates the ideal width for a DropDownByKey UI element using the list of items. Calculates and sets the ideal width for a DropDownByKey UI element using the list of items. Calculates the URL of a Web Dynpro application Returns an OTR text for an OTR alias
CL_WD_TRACE_TOOL and IF_WD_TRACE_TOOL	Adds data records for the Web Dynpro trace tool.
CL_WD_WEB_ICON	Provides information about the Web icons.
CL_WEB_DYNPRO	An application that uses the ABAP Dictionary search help can find out whether it is running in the Web Dynpro environment by querying the attribute IS_ACTIVE of class CL_WEB_DYNPRO:
IF_WD_ACFUPDOWNLOAD_SWFS	Displays a file selection dialog.
CL_WD_NOTIFICATION_SERVICE and IF_WD_NOTIFICATION_SERVICE	Allows you to register Web Dynpro actions for the notification service. These can then be managed in another location later on.