Sometime, when you work with ABAP OO GUI objects like ALV grid, tree, HTML control,
etc, you want to trigger the PAI with a specific OKCODE without any interraction from
the user. This is quite simple, you just have to call this small method :
* Execute PAI of actual screen to update ALV
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'DUMMY'. "<<==-- Here you put the OKCODE that you want to dispatch
* A flush is required to trigger the refresh
CALL METHOD cl_gui_cfw=>flush.
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