topic Re: multiple event handler at the same time in Application Development and Automation Discussions

multiple event handler at the same time

Former Member — Fri, 13 Sep 2013 11:00:46 GMT

Hi,

I registered two event handler for two alv object, which are displayed in same screen. But sometimes one can be triggered and sometimes the other especially for event DATA_CHANGED and SUBTOTAL_TEXT. For example, DATA_CHANGED under event handler A is triggered and that under event handler B is not.

Best regards,

Re: multiple event handler at the same time

Former Member — Fri, 13 Sep 2013 11:15:54 GMT

Don't need one handler for each ALV GRID

Can use

SET HANDLER ... FOR ALL INSTANCES OF ...

Re: multiple event handler at the same time

hiriyappa_myageri — Fri, 13 Sep 2013 11:47:55 GMT

Hi TS,

Hi refer below code.
for different alv objects you can pass registered events like this.

data:grid1 type ref to cl_gui_alv_grid,

grid2 type ref to cl_gui_alv_grid,

call method grid1->check_changed_data.

call method grid1->register_edit_event

exporting

i_event_id = cl_gui_alv_grid=>mc_evt_modified

exceptions

error = 1

others = 2.

call method grid2->check_changed_data.

call method grid2->register_edit_event

exporting

i_event_id = cl_gui_alv_grid=>mc_evt_modified

exceptions

error = 1

others = 2.

Thanks & Reagards

Hiriyappa

Re: multiple event handler at the same time

Former Member — Sun, 15 Sep 2013 02:34:32 GMT

I use different event handlers because the user commands are different. Can SET HANDLER ... FOR ALL INSTANCES OF ... handle this?

Re: multiple event handler at the same time

Former Member — Sun, 15 Sep 2013 04:58:24 GMT

Hi T.S,

You can handle the events for all instances by defining just a single event handler.

DATA : alv01 TYPE REF TO cl_gui_alv_grid ,

alv02 TYPE REF TO cl_gui_alv_grid .

SET HANDLER g_event_receiver->handle_data_changed FOR FOR ALL INSTANCES.

CLASS lcl_event_receiver DEFINITION.

PUBLIC SECTION.

CLASS-METHODS:

handle_data_changed

FOR EVENT data_changed OF cl_gui_alv_grid

IMPORTING

er_data_changed

e_onf4

e_onf4_before

e_onf4_after

e_ucomm

sender.

*----------------------------------------------------------------------*

* CLASS lcl_event_receiver IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*

CLASS lcl_event_receiver IMPLEMENTATION.

METHOD handle_data_changed.

CASE sender.

WHEN alv01.

" alv01 has fired the event

WHEN alv02.

" alv02 has fired the event

In this way, you will get events for all instances handled correctly with a single handler.

You can refer these links for sample codes on multiple instance handling and data changed event handling

http://abap-development-consultant.blogspot.ae/2011/05/using-alv-event-handler-for-all.html

http://wiki.scn.sap.com/wiki/display/ABAP/Get+Changed+Value+In+ALV+Grid+Dynamically.

Re: multiple event handler at the same time

Former Member — Sun, 15 Sep 2013 05:29:42 GMT

Yes, it can. Refer the code below.