Itab creation on runtime

Question

Hi friends,
Have run into to trouble trying to create a dynamic structure as follows
"Material Land Nov.09 Dez.09 Jan.10 Feb.10 Mar.10 TotalCount"
The dates are created dynamically with regard to the time period entered in the select options.
The first 2 fields("Material","Land" and the last field "TotalCount") will always be there.The date fields have to change according to the dates entered.
Runtime error - "Load_PROGRAM_NOT_FOUND"
Exception - CX_SY_PROGRAM_NOT_FOUND
on calling
CALL METHOD cl_alv_table_create=>create_dynamic_table
  EXPORTING
    it_fieldcatalog = ifc
  IMPORTING
    ep_table        = dy_table.
Have filled by field catalog as follows:
xfc-fieldname = 'Material'.
xfc-datatype = 'CHAR'.
xfc-intlen = '15'.
APPEND xfc TO ifc.
CLEAR xfc.
xfc-fieldname = 'Opco'.
xfc-datatype = 'CHAR'.
xfc-intlen = '15'.
APPEND xfc TO ifc.
CLEAR xfc.
LOOP AT gt_monthcalc INTO gs_monthcalc.
  xfc-fieldname = gs_monthcalc-month.
  xfc-datatype = 'CHAR'.
  xfc-intlen = '10'.
  APPEND xfc TO ifc.
  CLEAR xfc.
ENDLOOP.
xfc-fieldname = 'Totalcount'.
xfc-datatype = 'CHAR'.
xfc-intlen = '15'.
APPEND xfc TO ifc.
CLEAR xfc.
Please advice what iam doing wrong.
->If the dynamic itab is created ,how to fill it with values.
For example.- I want to access specifically the field names like itab-dez.09 or itab-Feb.10 to put values in it.Is it possible?
->If I write this itab using "Write" statement - Will the field names be written
For example - the following field names.
"Material Land Nov.09 Dez.09 Jan.10 Feb.10 Mar.10 TotalCount"
Thanks
P

Answer 1

Hi
I thought my sample was clear:
The "GT_MONTHCALC" itab we dont need anymore,as It was used only to fill in the fieldcatalog with months.
If I rember a your requisition is to create the name of the month concatening the short name and the year, something like this:
NOV09 DEC09 GEN10 FEB10 MAR10 APR10 ..........
In this case the fieldname of month of your dynamic table doesn't corrispond to value in  gs_tab-month as here you have stored the short name of the month only.
I suppose if gs_tab-month is nov, the quantity has to move in the field called NOV09, if it's so it needs to get a link in order to know the real name of the moth field of dynamic table.
This link can be in GT_MONTHCALC only, because you've used it to create dynamic table.
Now I've create a routine to transfer the value from GS_TAN to <FS_WA>:
FORM MOVE_VALUE  USING    P_FIELD
                          P_VALUE.
  ASSIGN COMPONENT P_FIELD OF STRUCTURE <FS_WA> TO <FS_VAL>.
  MOVE P_VALUE TO <FS_VAL>.
ENDFORM.
P_FIELD is the name of dynamic table field
P_VALUE is the value to be transfered
Now I want to
copy the contents of the field "matnummer" to "mat" in fS_itab
copy the contents of the field "soldto" to "OPCO" in fS_itab
This requirement is easy because the name of the dynamic table are constant:
loop gt_tab into gs_tab.
    CLEAR <FS_WA>.
* Move material code
    PERFORM MOVE_VALUE USING 'MAT' GS_TAB-MATNUMMER.
*  Move soldto
   PERFORM MOVE_VALUE USING 'OPCO' GS_TAB-SOLDTO.
copy the contents of the field "dqty" to "NOV" in fS_itab
In this case you need to move the value to FS_ITAB-NOV09, so:
Found the name of dynamic table:
TRANSLATE FS_ITAB-MONTH TO UPPER CASE.
LOOP AT GT_MONTHCALC INTO GS_MONTHCALC.
   IF GS_MONTHCALC-MONTH(3) = FS_ITAB-MONTH.
* I found the right name
     EXIT.
  ENDIF.
ENDLOOP.
* Move qty
PERFORM MOVE_VALUE USING GS_MONTHCALC-MONTH GS_TAB-DQTY.
I hope it's clear now
Max