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Using CL GUI TIMER for automated screen refreshing



 
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PostPosted: Tue Mar 04, 2008 12:12 am    Post subject: Using CL GUI TIMER for automated screen refreshing Reply with quote

Author: Ben Meijs Ctac
Original: http: //wiki.ittoolbox.com/index.php/Using_CL_GUI_TIMER_for_automated_screen_refreshing

Did you know that using global class CL_GUI_TIMER, you can write ABAP code that refreshes automatically. Below, I added an example of using this code. You can provide the time interval on the selection screen of this example.

Code:

*&---------------------------------------------------------------------*
*& Report ZZ_GUI_TIMER
*&---------------------------------------------------------------------*
*& Example using the CL_GUI_TIMER
*& Automatic refreshment of the screen dynpro
*&---------------------------------------------------------------------*

report zz_gui_timer.
*---------------------------------------------------------------------*
*CLASS lcl_event_handler DEFINITION
*---------------------------------------------------------------------*

class lcl_event_handler definition.
 public section.
   class-methods: on_finished for event finished of cl_gui_timer
      importing sender.

endclass. "lcl_event_handler DEFINITION
*---------------------------------------------------------------------*
*CLASS lcl_event_handler IMPLEMENTATION
*---------------------------------------------------------------------*

class lcl_event_handler implementation.
 method on_finished.
   statics: ltp_refreshed type i.
   add 1 to ltp_refreshed.
   write:  'Refresh number:',
           ltp_refreshed.
* Start timer again
   sender->run( ).
 endmethod. "on_finished

endclass. "lcl_event_handler IMPLEMENTATION data: rf_gui_timer type ref to cl_gui_timer.

parameters: pa_refrs type i default 10.

start-of-selection.
 create object rf_gui_timer.
 set handler lcl_event_handler=>on_finished for rf_gui_timer.
* Setting the refreshment interval.
 rf_gui_timer->interval = pa_refrs.
 rf_gui_timer->run(  ).
* The session must remain active!
 write 'Wait for a while:'
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