Providing Standard ALV Functions 

You are able to provide functions so that users can work with the ALV output. The functions that the system provides for ALV are called standard ALV functions. Standard ALV functions include, for example, sorting, filtering, and performing calculations.

A number of UI elements can be found in the toolbar. The majority of the UI elements, however, are found in the Settings dialog box, a separate area that the user can show or hide as required.

You cannot change the positioning of the UI elements for the standard ALV functions.

You can show, hide, or deactivate the entire toolbar.

 

Settings Dialog Box

This dialog box is hidden by default. The user can show it by choosing the Settings button from the toolbar.

The settings that the user makes in the dialog box can be applied to the ALV output in two ways:

·         Using the Copy pushbutton

The settings are applied to the ALV output. The dialog box remains open and the user can make further settings.

·         Using the OK pushbutton

The settings are applied to the ALV output. The dialog box closes.

If the user chooses the Cancel pushbutton, the dialog box closes without changing the ALV output.

Providing Standard ALV Functions

You determine which standard ALV functions are available to the user by showing or hiding the UI elements for the relevant standard functions.

By default, all UI elements are shown with the exception of those elements that are required for calculations (including interim results) and for the editable ALV.

You can find the methods you require for this in the interface class IF_SALV_WD_STD_FUNCTIONS (implementing class CL_SALV_WD_CONFIG_TABLE). All of these methods contain the parameter VALUE of the type ABAP_BOOL:

Methods for Standard ALV Functions

Function	UI Element	Comments	Method
Show and hide columns
	Column Selection tab page		SET_COLUMN_SELECTION_ALLOWED
Sort
	Sorting tab page		SET_SORT_COMPLEX_ALLOWED
	Sorting with single click on column header	Arrow icon in column header	SET_SORT_HEADERCLICK_ALLOWED
Filter
	Filter tab page		SET_FILTER_COMPLEX_ALLOWED
	Filter pushbutton in toolbar		SET_FILTER_FILTERLINE_ALLOWED
Calculations
	Calculations tab page		SET_AGGREGATION_ALLOWED
	All elements for interim results	Additional information on Sorting tab page	SET_GROUP_AGGREGATION_ALLOWED
	The UI elements for interim results are only visible if both the Sorting tab page and the Calculations tab page are shown.
	Count table entries		SET_COUNT_RECORDS_ALLOWED
Display
	Display tab page		SET_DISPLAY_SETTINGS_ALLOWED
Views
	Views dropdown list box		SET_VIEW_LIST_ALLOWED
Editable ALV
	Pushbutton Insert Line	Can only be shown if write-protection has been deactivated	SET_EDIT_INSERT_ROW_ALLOWED
	Pushbutton Append Line		SET_EDIT_APPEND_ROW_ALLOWED
	Pushbutton Delete Line		SET_EDIT_DELETE_ROW_ALLOWED
	Pushbutton Check		SET_EDIT_CHECK_AVAILABLE
	Pushbutton Undo		SET_EDIT_UNDO_ALLOWED
Export
	Pushbutton Excel		SET_EXPORT_ALLOWED
	Pushbutton and tab page Print Version		SET_PDF_ALLOWED

The names of the relevant get methods do not begin with GET_<METHOD NAME>, but with IS_<METHOD NAME>.

Standard ALV Function Events

Two events have been provided to handle standard ALV functions:

·        ON_STD_FUNCTION_BEFO

·        ON_STD_FUNCTION_AFTE