Editable & Dynamic ALV

Question

Hi,
I have the situation where I want to create an editable ALV whose column fields will be known during run time. So, here I'm using Dynamic Internal table concept.
Let me give a picture how my present program works,
Inside the fieldcatalog, ifc I have passed the deep structure of type lvc_s_styl, by pointing to the reference table and reference field.
Then I'm using the below code,
CALL METHOD cl_alv_table_create=>create_dynamic_table
    EXPORTING
      it_fieldcatalog           = ifc
      i_length_in_byte          = 'X'
    IMPORTING
      ep_table                  = dy_table
    EXCEPTIONS
      generate_subpool_dir_full = 1
      OTHERS                    = 2.
  ASSIGN dy_table->* TO <dyn_table>.
  CREATE DATA dy_line LIKE LINE OF <dyn_table>.
  ASSIGN dy_line->* TO <dyn_wa>.
And I got the dynamic Internal table having one field (let it be the first column of that internal table) corresponding to the deep structure where we need to pass the fieldname and style = cl_gui_alv_grid=>mc_style_enabled.
Suppose, I have an internal table containing all the fieldnames (consider there are 5 fields) to be in editable mode, lets say, itab.
FIELD-SYMBOLS <t_celltab> TYPE ANY.
DATA ls_stylerow TYPE lvc_s_styl .
DATA lt_styletab TYPE lvc_t_styl .
    LOOP AT itab INTO wa.
      ASSIGN COMPONENT 1 OF STRUCTURE <dyn_wa> TO <t_celltab>.
      CLEAR ls_stylerow.
      ls_stylerow-fieldname = wa-fildname.
      ls_stylerow-style     = cl_gui_alv_grid=>mc_style_enabled.
      INSERT ls_stylerow INTO TABLE lt_styletab.
      INSERT LINES OF lt_styletab INTO TABLE <t_celltab>.
    ENDLOOP.
And the last bit of code is not working.
My question is simple, How can i assign an internal table (type lvc_s_styl) containing values, to that deep structure field of that dynamic internal table?
Thanks in advance!
Edited by: kishan P on Oct 5, 2010 9:22 PM

Answer 1

I had a similar requirement and was able to get this to work.  This may help.
create a local field symbol.
field-symbols: <l_celltab> type lvc_t_styl,
data:  li_celltab type line of lvc_t_styl.
Then assign the contents (assuming you already declared this celltab of type lvc_t_styl in your fieldcatalog and therefore into your <dyn_wa> table.
assign ('<dyn_wa>-celltab') to <l_celltab>.
loop at <dyn_wa>-celltab into li_celltab.
  insert li_celltab into table <l_celltab>.
endloop.
I hope you find this helpful.  I have this working for me in a complex ALV I wrote a few years back.