Creating, Getting, and Deleting Functions 

If you use the ALV configuration model, the objects for all standard ALV functions are created automatically. The objects are from class CL_SALV_WD_FUNCTION_STD.

With user-defined functions, you create a function object of class CL_SALV_WD_FUNCTION with each function. You can create as many function objects as you want and arrange them in the toolbar.

You can make the following settings:

●      Create an object for a user-defined function

●      Get an object of a function

●      Set and get information about a function

●      Delete an object of a user-defined function

Creating an Object for a User-Defined Function

When you create a user-defined function, you specify a unique ID (type STRING) with which you later address the function.

To generate a function object, you use the methods of interface class IF_SALV_WD_FUNCTION_SETTINGS (implementing class CL_SALV_WD_CONFIG_TABLE).

Methods for Creating Function Objects

Function	Method
Create user-defined function	CREATE_FUNCTION

Getting an Object of a Function

To make settings for a function object, you must first call a suitable GET method. You can choose which function you want to get from the toolbar:

●      All standard ALV functions or a specific function

●      All user-defined functions or a specific function

●      Only the standard ALV functions on one side of the toolbar

●      All user-defined functions on one side of the toolbar or a specific function

Various methods are available for this purpose in interface class IF_SALV_WD_FUNCTION_SETTINGS (implementing class CL_SALV_WD_CONFIG_TABLE):

Methods for Getting Function Objects

Function	Method
Get all standard ALV functions	GET_FUNCTIONS_STD
Get specific standard ALV function	GET_FUNCTION_STD
Get all user-defined functions	GET_FUNCTIONS
Get specific user-defined function	GET_FUNCTION
Get all standard ALV functions from left-hand side of toolbar	GET_FUNCTIONS_LEFT_STD
Get all user-defined functions from left-hand side of toolbar	GET_FUNCTIONS_LEFT
Get specific user-defined function from left-hand side of toolbar	GET_FUNCTION_LEFT
Get all standard ALV functions from right-hand side of toolbar	GET_FUNCTIONS_RIGHT_STD
Get all user-defined functions from right-hand side of toolbar	GET_FUNCTIONS_RIGHT
Get specific user-defined function from right-hand side of toolbar	GET_FUNCTION_RIGHT

Setting and Getting Information About a Function

You can examine a function in the toolbar to determine whether it is a standard ALV function or a user-defined function.

You also specify the following properties:

●      ID

The ID of a standard ALV function is created automatically. It contains information about the standard ALV function.

The ID of a user-defined function is the ID you assigned the object when you created it.

●      Group

You can use the group name to group functions according to any criteria.

●      Position in the toolbar (see Specifying the Position in the Toolbar)

●      Visibility and activation (see Controlling Visibility and Activation Status)

For the information, you use methods from class CL_SALV_WD_FUNCTION or class CL_SALV_WD_FUNCTION_STD.

Methods for Information About Function Objects

Function	Method
Get function type	GET_TYPE
Get function ID	GET_ID
Assign function to a group	SET_GROUP
Get name of group to which function is assigned	GET_GROUP

Deleting a Function

You can only delete objects of user-defined functions; you cannot delete objects of standard ALV functions.

To delete a user-defined function, specify the function ID. To do this, you use the methods of interface class IF_SALV_WD_FUNCTION_SETTINGS (implementing class CL_SALV_WD_CONFIG_TABLE).

Methods for Deleting Function Objects

Function	Method
Delete user-defined function	DELETE_FUNCTION