Controlling Visibility and Activation Status 
You can control whether user-defined functions are used in various ways:
You can deactivate an individual UI element for a function.
You can hide an individual UI element for a function.
You can deactivate the entire toolbar.
You can hide the entire toolbar.
Activating and Deactivating Functions
If you do not want to hide a UI element, but want to prevent the user from executing its function, you can deactivate the UI element.
To activate or deactivate the UI element for a standard ALV function, you use methods from class CL_SALV_WD_FUNCTION_STD.
To activate or deactivate the UI element for a user-defined function, you use methods from the class of your UI element (see Specifying User Interface Elements).
Methods for the activation status of function objects
Function | Method |
Enable/disable function object | SET_ENABLED |
Get activation status | GET_ENABLED |
Showing and Hiding Functions
The following two constants are available for showing and hiding functions:
VISIBILITY-VISIBLE
The system displays the function.
VISIBILITY-NONE
The system hides the function.
To show or hide a UI element for a standard ALV function, you use the methods of class CL_SALV_WD_FUNCTION_STD.
To show or hide a UI element for a user-defined function, you use the methods of class CL_SALV_WD_FUNCTION.
Methods for showing and hiding function objects
Function | Method |
Show/hide function object | SET_VISIBILITY |
Get visibility | GET_VISIBILITY |
Showing, Hiding, and Deactivating the Toolbar
To control the activation status or visibility of the whole toolbar, you use the methods of interface class IF_SALV_WD_FUNCTION_SETTINGS (implementing class CL_SALV_WD_CONFIG_TABLE).
Methods for the activation status and visibility of the toolbar
Function | Method |
Activate/deactivate toolbar | SET_ENABLED |
Get activation status | GET_ENABLED |
Show/hide toolbar | SET_VISIBILITY |
Get visibility | GET_VISIBILITY |