Add a custom button in Grid ALV

Line 60 : FM REUSE_ALV_GRID_DISPLAY is called to display the internal table records as a Grid.

Line 61 – 65 (Exporting parameters) :

i_callback_program: program name which calls this FM.

it_fieldcat: Field catalogue name.

You might notice we have passed 2 more parameters here. These 2 new parameters are used to display the new custom button in the ALV toolbar.

i_callback_pf_status_set: here we pass the subroutine name. within this subroutine we are going the call the GUI status. The subroutine name should always be in UPPERCASE.

Lines 76 – 78: Subroutine defined. Setting the GUI status = STANDARD_FULLSCREEN, which contains the new custom button along with the ALV standard toolbar buttons. Check below how to create a GUI status and use in this ALV report.

i_callback_user_command: Here also we pass the subroutine name. In this subroutine we will write the entire logic which will get executed when user clicks on the custom button. Again don’t forget to provide subroutine name in UPPERCASE.

Lines 81 – 88: Subroutine defined. Depending on the function code of the custom button logic will be executed. When user clicks on a custom button whose function code is ‘&ZDWN’, the system should stop at line 85 (Because of the ABAP keyword – BREAK-POINT).