Can we do input field readonly and it will takes data only from F4

Question

Hi  experts,
I want user only fill data in inputfield by F4, not manualy , can we do somwthing for that.
Thanks & Regards
Prashant Gupta

Answer 1

Hi Prashanth,
   We can handle your requirement. I will give one example and it is working.   
    Address -  Node
     Firtst_Name-    Node  attribute    and this attribute will have DDIC search help.
   Create Input field 'FIRSTNAME' for this attribute in screen with transparent container  'TC' and bind the above context to the UI element.  Now this UI element is Context is 'ADDRESS.FIRSTNAME'.
Now add the below code in MODIFYVIEW hook method.The below code will add search help with read only input field but for display mode again you have to disable the search help for this field. i have not written code for that.
  DATA: lo_first_name       TYPE REF TO cl_wd_input_field,
        lo_first_name_new   TYPE REF TO cl_wd_input_field,         " New input field
        lo_transp_cont      TYPE REF TO cl_wd_transparent_container. " TC container
        lo_new_container    TYPE REF TO cl_wd_transparent_container.
  DATA: lv_bound_value      TYPE string,
        lv_read_only        TYPE wdy_boolean.
   IF iv_first_time EQ abap_true.
lo_first_name_input ?= io_view->get_element( id = 'FIRST_NAME' ).
lo_first_name_input->set_width( '0' ).
lv_bound_value = lo_first_name_input->bound_value( ).  "ADDRESS.FIRST_NAME"
    Create new dynamic Input Field
      CALL METHOD cl_wd_input_field=>new_input_field
        EXPORTING
          bind_value = lv_bound_value     
          id         = 'FIRST_NAME_NEW'
          read_only  = abap_true
          view       = io_view
        RECEIVING
          control    = lo_first_name_new.
    Create new dynamic Transparent Container
      CALL METHOD cl_wd_transparent_container=>new_transparent_container
        EXPORTING
          id      = 'TC_NEW'    " New container
          view    = io_view
        RECEIVING
          control = lo_new_container.
      " I used flow layout thats why i am using the flow layout
      cl_wd_flow_layout=>new_flow_layout( container = lo_new_container ).
      cl_wd_matrix_data=>new_matrix_data( element = lo_new_container ).
  " Get old field container
   lo_transp_cont ?= io_view->get_element( id = 'TC' ). 
   IF NOT lo_transp_cont IS INITIAL.
    "Using a new Transparent Container both Fields for FIRST_NAME are shown as only one Field
        cl_wd_flow_data=>new_flow_data( element     = lo_first_name_new ).
        lo_new_container->add_child( the_child = lo_first_name_new ).
        " remove the child means old FIRT_NAME
        lo_first_name ?= lo_transp_cont->remove_child( id = 'FIRST_NAME' ).
        cl_wd_flow_data=>new_flow_data( element = lo_first_name ).
        lo_new_container->add_child( the_child = lo_first_name ).
      lo_transp_cont->add_child( index      = 2
                                 the_child  = lo_new_container ).
   ENDIF.
endif.
Regards,
Devi