Global classes / Doppelclick

[Former Member]

Hello Every Body,

please can someone tell me how can implement Doppelclick using Global classes.!!

Best regards.

daniel

[uwe_schieferstein]

Hello Daniel

I assume you want to handle DOUBLE_CLICK events of controls (e.g. ALV grid, tree) using global classes.

That's a piece of cake. Below I outline a possible procedure:

(1) Create your control instance (e.g. go_grid, CL_GUI_ALV_GRID)

(2) Create an instance of your global class. The CONSTRUCTOR method may look like this:

CREATE OBJECT go_myclass
  EXPORTING
    io_instance = go_grid.  " Assumption: class should only handle ALV grid events


METHOD constructor.

  me->mo_grid = io_instance.  " class may have instance attribute for grid instance

  me->set_handler( ).  " perhaps private method for setting event handler  
...
ENDMETHOD.


METHOD set_handler.
  SET HANDLER: handle_double_click FOR me->mo_grid.
ENDMETHOD.

(3) Create an event handler method (e.g. HANDLE_DOUBLE_CLICK for event DOUBLE_CLICK of cl_gui_alv_grid) within your global class.

That's it. As soon as the user double-clicks on a row in the ALV grid (go_grid) the method HANDLE_DOUBLE_CLICK of your global class will be called to handle the event.

Regards

Uwe