Class atributes

Question

Hello all!!
Following the instructions in this Weblog for iterator implement /people/brian.mckellar/blog/2003/10/31/bsp-programming-htmlb-tableview-iterator (a lot of thanks)
I create my own bsp that works correctly.
Now I have a question with the class that implements the iterator interface.
I want to use p_edit_mode in method IF_HTMLB_TABLEVIEW_ITERATOR~RENDER_CELL_START but i don't know how to set this parameter to x from the bsp (sorry but I'm newbie in this).
I want, too, to establish a new atribute in this class to say to the method IF_HTMLB_TABLEVIEW_ITERATOR~GET_COLUMN_DEFINITIONS wich columns i want depending from a parameter of the bsp, and i don't know how to make this.
Many thanks in advance and thank you too all persons of this forum beacuse it's a very good guidance to resolve problems (I read a lot of threads and with this I create my first bsp).
Thanks again!!!

Answer 1

you just create a constructor method for this class and pass the column definition from your application to this class while instantiating the same .
sample.
  CALL FUNCTION 'TR_NAMETAB_GET'
    EXPORTING
      iv_tabname                 = 'SFLIGHT'
      iv_get_lengths_in_charmode = ' '
      iv_get_texts               = 'X'
    IMPORTING
      et_dfies                   = lt_dfies
    EXCEPTIONS
      not_found                  = 1
      OTHERS                     = 2.
  IF sy-subrc <> 0.
*--- Do nothing in this particular case
  ENDIF.
  LOOP AT lt_dfies INTO ls_dfies.
    wa_pers_tab-field_name = ls_dfies-fieldname.
    wa_pers_tab-text       = ls_dfies-reptext.
    wa_pers_tab-colpos     = sy-tabix.
    wa_pers_tab-invisible  = ' ' .
    APPEND wa_pers_tab TO pers_tab.
  ENDLOOP.
ENDIF .
SORT pers_tab BY colpos .
CREATE OBJECT iterator TYPE ycl_tv_iterator
  EXPORTING
    col_def = pers_tab .
and in the column definition method you can use this to build the columns
LOOP AT m_col_def INTO wa_col_def  .
    APPEND INITIAL LINE TO p_column_definitions ASSIGNING <def>.
    <def>-columnname = wa_col_def-field_name.
    <def>-title      = wa_col_def-text .
  ENDLOOP .