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where to write the class

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Former Member

‎2007 May 23 2:33 PM

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727

Event handler class to handle double click of the user on alv grid.

such a class:

The class will be written in the main program or not?

Thanks.

CLASS lcl_event_handler DEFINITION .

PUBLIC SECTION .

METHODS:

*--Hotspot click control

handle_hotspot_click

FOR EVENT hotspot_click OF cl_gui_alv_grid

IMPORTING e_row_id e_column_id es_row_no ,

*--Double-click control

handle_double_click

FOR EVENT double_click OF cl_gui_alv_grid

IMPORTING e_row e_column es_row_no.

PRIVATE SECTION.

ENDCLASS.

CLASS lcl_event_handler IMPLEMENTATION .

*--Handle Hotspot Click

METHOD handle_hotspot_click .

PERFORM handle_hotspot_click USING e_row_id e_column_id es_row_no .

ENDMETHOD .

*--Handle Double Click

METHOD handle_double_click .

PERFORM handle_double_click USING e_row e_column es_row_no .

ENDMETHOD .

ENDCLASS .

FORM CREATEOBJECT.

DATA gr_event_handler TYPE REF TO lcl_event_handler .

*--Creating an instance for the event handler

CREATE OBJECT gr_event_handler .

SET HANDLER gr_event_handler->handle_double_click FOR gr_alvgrid .

SET HANDLER gr_event_handler->handle_hotspot_click FOR gr_alvgrid .

ENDFORM.

FORM handle_hotspot_click USING i_row_id TYPE lvc_s_row

i_column_id TYPE lvc_s_col

is_row_no TYPE lvc_s_roid.

READ TABLE zbficheentry_list2 INDEX is_row_no-row_id .

IF sy-subrc = 0." AND i_column_id-fieldname = 'SEATSOCC'.

CALL SCREEN 200 . "Details about passenger-seat matching

ENDIF .

ENDFORM .

FORM handle_double_click USING i_row TYPE lvc_s_row

i_column TYPE lvc_s_col

is_row_no TYPE lvc_s_roid.

READ TABLE zbficheentry_list2 INDEX is_row_no-row_id .

IF sy-subrc = 0." AND i_column-fieldname = 'SEATSOCC' .

CALL SCREEN 120 . "Details about passenger-seat matching

ENDIF .

ENDFORM .

1 ACCEPTED SOLUTION
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Former Member

‎2007 May 23 2:42 PM

0 Likes
692

Yes, you should write the class in your main program (definition and implementation). Here's an example:

&----

*& Class LCL_EVENT_HANDLER

&----

  • Text

----

CLASS lcl_event_handler DEFINITION.

PUBLIC SECTION.

METHODS: on_double_click FOR EVENT double_click OF cl_gui_alv_grid

IMPORTING es_row_no e_column.

ENDCLASS. "LCL_EVENT_HANDLER

&----

*& Class (Implementation) lcl_event_handler

&----

  • Text

----

CLASS lcl_event_handler IMPLEMENTATION.

METHOD on_double_click.

DATA: text TYPE string, es_row_text TYPE string.

es_row_text = es_row_no-row_id.

CONCATENATE 'You have selected row:' es_row_text 'and column:' e_column

INTO text SEPARATED BY ' '.

MESSAGE text TYPE 'I'.

ENDMETHOD. "on_double_click

ENDCLASS. "lcl_event_handler

In the main program you also need to define an instance of your class, like this:

DATA: r_handler TYPE REF TO lcl_event_handler.

Then after START-OF-SELECTION put this:

CREATE OBJECT r_handler.

Be sure to use something like this in your main program after you instantiate the ALV container:

SET HANDLER r_handler->on_double_click FOR r_alv_grid.

I hope this helps.

- April King

Event handler class to handle double click of the user on alv grid.

such a class:

The class will be written in the main program or not?

Thanks.

CLASS lcl_event_handler DEFINITION .

PUBLIC SECTION .

METHODS:

*--Hotspot click control

handle_hotspot_click

FOR EVENT hotspot_click OF cl_gui_alv_grid

IMPORTING e_row_id e_column_id es_row_no ,

*--Double-click control

handle_double_click

FOR EVENT double_click OF cl_gui_alv_grid

IMPORTING e_row e_column es_row_no.

PRIVATE SECTION.

ENDCLASS.

CLASS lcl_event_handler IMPLEMENTATION .

*--Handle Hotspot Click

METHOD handle_hotspot_click .

PERFORM handle_hotspot_click USING e_row_id e_column_id es_row_no .

ENDMETHOD .

*--Handle Double Click

METHOD handle_double_click .

PERFORM handle_double_click USING e_row e_column es_row_no .

ENDMETHOD .

ENDCLASS .

FORM CREATEOBJECT.

DATA gr_event_handler TYPE REF TO lcl_event_handler .

*--Creating an instance for the event handler

CREATE OBJECT gr_event_handler .

SET HANDLER gr_event_handler->handle_double_click FOR gr_alvgrid .

SET HANDLER gr_event_handler->handle_hotspot_click FOR gr_alvgrid .

ENDFORM.

FORM handle_hotspot_click USING i_row_id TYPE lvc_s_row

i_column_id TYPE lvc_s_col

is_row_no TYPE lvc_s_roid.

READ TABLE zbficheentry_list2 INDEX is_row_no-row_id .

IF sy-subrc = 0." AND i_column_id-fieldname = 'SEATSOCC'.

CALL SCREEN 200 . "Details about passenger-seat matching

ENDIF .

ENDFORM .

FORM handle_double_click USING i_row TYPE lvc_s_row

i_column TYPE lvc_s_col

is_row_no TYPE lvc_s_roid.

READ TABLE zbficheentry_list2 INDEX is_row_no-row_id .

IF sy-subrc = 0." AND i_column-fieldname = 'SEATSOCC' .

CALL SCREEN 120 . "Details about passenger-seat matching

ENDIF .

ENDFORM .

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4 REPLIES 4
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Former Member

‎2007 May 23 2:37 PM

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692

u need to call this class in ur main program

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Former Member

‎2007 May 23 2:38 PM

0 Likes
692

Hello,

Yes the idea is to do it during in the start of selection event.

Hope this helps,

Gabriel

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Former Member

‎2007 May 23 2:42 PM

0 Likes
693

Yes, you should write the class in your main program (definition and implementation). Here's an example:

&----

*& Class LCL_EVENT_HANDLER

&----

  • Text

----

CLASS lcl_event_handler DEFINITION.

PUBLIC SECTION.

METHODS: on_double_click FOR EVENT double_click OF cl_gui_alv_grid

IMPORTING es_row_no e_column.

ENDCLASS. "LCL_EVENT_HANDLER

&----

*& Class (Implementation) lcl_event_handler

&----

  • Text

----

CLASS lcl_event_handler IMPLEMENTATION.

METHOD on_double_click.

DATA: text TYPE string, es_row_text TYPE string.

es_row_text = es_row_no-row_id.

CONCATENATE 'You have selected row:' es_row_text 'and column:' e_column

INTO text SEPARATED BY ' '.

MESSAGE text TYPE 'I'.

ENDMETHOD. "on_double_click

ENDCLASS. "lcl_event_handler

In the main program you also need to define an instance of your class, like this:

DATA: r_handler TYPE REF TO lcl_event_handler.

Then after START-OF-SELECTION put this:

CREATE OBJECT r_handler.

Be sure to use something like this in your main program after you instantiate the ALV container:

SET HANDLER r_handler->on_double_click FOR r_alv_grid.

I hope this helps.

- April King

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Former Member
In response to Former Member

‎2007 May 23 3:27 PM

0 Likes
692

Dear April King

Thank you, thank you, thank you. I was in a trouble, you helped me very much.