ViewcontainerUIElement Event

Question

hi
how can  i create a pop up  in alv rowselection event.
and how can i hide a column in alv ?

Answer 1

Hi Mesut,
Making a column visible/invisible:
To do this you first need to get the reference of the desired column using method GET_COLUMN of IF_SALV_WD_COLUMN_SETTINGS and then set the desired visible/invisible property using the method SET_VISIBLE of CL_SALV_WD_COLUMN. Go through the sample fragment shown below:
Sample Fragment:
data lo_cmp_usage_alv type ref to if_wd_component_usage.
* Instantiate the ALV Component
  lo_cmp_usage_alv =   wd_this->wd_cpuse_ywdcu_src_icx_alv( ).
  if lo_cmp_usage_alv->has_active_component( ) is initial.
    lo_cmp_usage_alv->create_component( ).
  endif.
* Get reference to model
  DATA lo_value TYPE ref to cl_salv_wd_config_table.
  lo_value = lo_interfacecontroller->get_model( ).
  DATA: LR_COLUMN_SETTINGS TYPE REF TO IF_SALV_WD_COLUMN_SETTINGS.
     LR_COLUMN_SETTINGS ?= lo_value,
     LR_COLUMN_TAR_DATE_TIME TYPE REF TO CL_SALV_WD_COLUMN.
" Get the reference of the desired column     
     LR_COLUMN_TAR_DATE_TIME = LR_COLUMN_SETTINGS->GET_COLUMN( '<context_attribute_name>' ).
" Set the visibility of the column to the desired value. Below line sets its as invisible
         LR_COLUMN_TAR_DATE_TIME->SET_VISIBLE( IF_WDL_CORE=>VISIBILITY_BLANK ).
Displaying a popup on row selection:
To be able to display a popup on selecting a row in ALV you need to make use of the ALV event ON_LEAD_SELECT. Create an event handler method for this event & write the code for generating the popup in this method. (You can use the code wizard for taking care of this coding. Just go to code wizard & select the "Generate popup" option. Specify the component usage & press enter. All the necessary coding would be automatically generated for you.)
Sample Fragment:
METHOD on_lead_select .
  DATA:  lo_window_manager TYPE REF TO if_wd_window_manager,
             lo_api_component  TYPE REF TO if_wd_component,
             lo_window         TYPE REF TO if_wd_window.
  lo_api_component  = wd_comp_controller->wd_get_api( ).
  lo_window_manager = lo_api_component->get_window_manager( ).
  lo_window         = lo_window_manager->create_window(
                     window_name            = 'TEMP'
                     message_display_mode   = if_wd_window=>co_msg_display_mode_selected
                     button_kind            = if_wd_window=>co_buttons_ok
                     message_type           = if_wd_window=>co_msg_type_none
                     default_button         = if_wd_window=>co_button_ok  ).
  lo_window->open( ).
ENDMETHOD.
If you want to know the default selected row in the ALV & the index of the new row which was selected by the user you can get the information from the 2 instance variables of CL_SALV_WD_TABLE_LEAD_SELECT:
IF_SALV_WD_TABLE_LEAD_SELECTINDEX  & IF_SALV_WD_TABLE_LEAD_SELECTOLD_INDEX
Try go through this [link |https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/40794172-b95a-2910-fb98-b86d8a0918b4]for more information about using ALV & popups in WebDynpro ABAP.
Regards,
Uday