ALV List in the same Column for the row CELL i need button or value

Question

Hi,
In my ALV list  for the same column I need Button or  Value for the different rows (CELL) depending upon my condition.
as well as I have to make  read only of 3 rd column CELL based on my first column dropdown value CELL for this Row Only.
Depends upon the value in  column 1 /  row 2   I have to  read only  the CELL of   column 5 / row 2   ie for the same row.
Depends upon the value in Column 1/ row 3    I have to   EDITABLE  or   Button   the CELL  of column 5 / row 3 ie for the same row
How to do the logic for this.
I tried and got it for the entire column only.
But my requirement is for the sepecific cell in the column.
Kindly help to proceed further.
Thanks in advance.
Dav

Answer 1

Here is how you can make a particular cell in the row read-only based on certain conditions.
In my example I am displaying the flight details in an ALV. Here I am checking the airline id and if it is "AA' I am making the cell in the column airline id as readonly. In my example I am putting a check and readonly on the same column. However you can do this for different columns as well.
In order to achieve this you need to add a new context attribute 'READONLY' of type abap_bool to the context node which is bound to data node of ALV.
The method where I populate the node has the following code to populate the data.
  data: lr_input_node type ref to if_wd_context_node,
        lr_flight_node type ref to if_wd_context_node,
        lv_cityfrom   type s_from_cit,
        lv_cityto     type s_to_city,
        ls_from       type bapisfldst,
        ls_to         type bapisfldst,
        lt_flights    type table of bapisfldat,
        ls_flights    type bapisfldat.
  data: lt_final type if_mainview=>elements_node_flighttab,
        ls_final type if_mainview=>element_node_flighttab.
* Instantiate the variable lr_input_note to the node NODE_FLIGHT
  lr_input_node  = wd_context->get_child_node( name = 'NODE_FLIGHT' ).
* Instantiate the variable lr_flight_note to the node NODE_FLIGHTTAB
  lr_flight_node = wd_context->get_child_node( name = 'NODE_FLIGHTTAB' )
* Get the attributes CityFrom und CityTo
  lr_input_node->get_attribute( exporting name = 'CITYFROM'
                                importing value = lv_cityfrom ).
  lr_input_node->get_attribute( exporting name = 'CITYTO'
                                importing value = lv_cityto ).
* Fill the stuctures ls_from and ls_to
  ls_from-city = lv_cityfrom.
  ls_to-city   = lv_cityto.
* Call the function BAPI_FLIGHT_GETLIST
  call function 'BAPI_FLIGHT_GETLIST'
   exporting
     destination_from       = ls_from
     destination_to         = ls_to
   tables
     flight_list            = lt_flights.
Now I am going to check if the airline id is 'AA' and based on that I will fill the readonly context attribute.
loop at lt_flights into ls_flights.
    MOVE-CORRESPONDING ls_flights to ls_final.
    if ls_flights-airlineid = 'AA'.
      ls_final-readonly = abap_true.
    else.
      ls_final-readonly = abap_false.
    endif.
    append ls_final to  lt_final.
  endloop.
Finally bind the data to the context node.
* Bind the data to the node NODE_FLIGHTTAB
  lr_flight_node->bind_elements( lt_final ).
Now you need to do the ALV configuration settings.
* create an instance of ALV component
  DATA:
    lr_salv_wd_table_usage TYPE REF TO if_wd_component_usage.
  lr_salv_wd_table_usage = wd_this->wd_cpuse_alv( ).
  IF lr_salv_wd_table_usage->has_active_component( ) IS INITIAL.
    lr_salv_wd_table_usage->create_component( ).
  ENDIF.
* get ALV component
  DATA:
    lr_salv_wd_table TYPE REF TO iwci_salv_wd_table.
  lr_salv_wd_table = wd_this->wd_cpifc_alv( ).
  wd_this->alv_config_table = lr_salv_wd_table->get_model( ).
  CALL METHOD wd_this->alv_config_table->if_salv_wd_table_settings~set_read_only
    EXPORTING
      VALUE  = ABAP_FALSE
* set visible row count
  DATA:
    lr_table_settings TYPE REF TO if_salv_wd_table_settings.
  lr_table_settings ?= wd_this->alv_config_table.
  lr_table_settings->set_visible_row_count( '10' ).
  DATA:
    lr_column_settings TYPE REF TO if_salv_wd_column_settings,
    lr_column          TYPE REF TO cl_salv_wd_column.
  lr_column_settings ?= wd_this->alv_config_table.
  DATA: lr_input_field TYPE REF TO cl_salv_wd_uie_input_field.
  lr_column = lr_column_settings->get_column( 'AIRLINEID' ).
  CREATE OBJECT lr_input_field EXPORTING value_fieldname = 'AIRLINEID'.
  lr_column->set_cell_editor( lr_input_field ).
  lr_input_field->set_read_only_fieldname( value = 'READONLY' ).
  CALL METHOD lr_column_settings->delete_column
    EXPORTING
      id     = 'READONLY'