Change this code to dynamic(field symbols)

hi,
i do this code and it working o.k. but i wont to change it to dynamic code like field symbols what is the best way to do that?
i reward
Regards
LOOP AT pro_tab into wa_pro.
      CASE wa_pro-period+0(2).
        WHEN '01'.
          MOVE wa_pro-epop TO wa_tr-month1.
        WHEN '02'.
          MOVE wa_pro-epop TO wa_tr-month2.
        WHEN '11' .
          MOVE wa_pro-epop TO wa_tr-month11.
          WHEN '12' .
          MOVE wa_pro-epop TO wa_tr-month12.
      ENDCASE.
      AT LAST.
        APPEND wa_tr TO tr_tab.
      ENDAT.
    ENDLOOP.

Hi Ricardo.
Try this sample code and make changes to urs.
DATA: v_field(30) TYPE c.
DATA: BEGIN OF itab OCCURS 0,
       period(2),
       month01(3),
       month02(3),
       month03(3),
       month04(3),
       month05(3),
      END OF itab.
FIELD-SYMBOLS : <fs> TYPE ANY.
FIELD-SYMBOLS : <fs1> TYPE ANY.
itab-period = '01'.
APPEND itab.
itab-period = '02'.
APPEND itab.
itab-period = '03'.
APPEND itab.
itab-period = '04'.
APPEND itab.
itab-period = '05'.
APPEND itab.
LOOP AT itab.
UNASSIGN <fs1>.
ASSIGN itab-period TO <fs1>.
CONCATENATE 'ITAB-' 'MONTH' itab-period INTO v_field.
UNASSIGN <fs>.
ASSIGN (v_field) TO <fs>.
CASE itab-period.
    WHEN <fs1>.
      IF <fs> IS NOT ASSIGNED.
        <fs> = 0.
      ELSE.
        <fs> = <fs1>.
      ENDIF.
ENDCASE.
ENDLOOP.
LOOP AT itab.
WRITE: itab-period, itab-month01, itab-month02, itab-month03,
itab-month04, itab-month05.
ENDLOOP.
<b>Assign Points if useful.</b>

Similar Messages

Dynamic field symbol

Hello :i would like to ask one favor , how can i define a field symbol, that can recieve a dynamic variable
segment of code:
CALL METHOD cl_alv_table_create=>create_dynamic_table
    EXPORTING
      it_fieldcatalog = it_fldcat
    IMPORTING
      ep_table        = it_dynamic.
ASSIGN it_dynamic->* TO <dyn_table>.
CREATE DATA wa_dynamic LIKE line of <dyn_table>.
ASSIGN wa_dynamic->* TO <dyn_wa>. " this one 'wa_dynamic' i need to sent to <dyn_wa>
thanks a lot

HI
GOOD
Generic Type Specification
The following types allow you more freedom when using actual parameters. The data object only needs to have the selection of attributes specified.
Typing
Check for data object
No type specification
TYPE ANY
All types of data object are accepted. The field symbol adopts all of the attributes of the data object.
TYPE C, N, P, or X
Only data objects with type C, N, P, or X are accepted. The field symbol adopts the field length and DECIMALS specification (type P) of the data object.
TYPE TABLE
The system checks whether the data object is a standard internal table. This is a shortened form of TYPE STANDARD TABLE (see below).
TYPE ANY TABLE
The system checks whether the data object is an internal table. The field symbol inherits all of the attributes (line type, table type, key) from the data object.
TYPE INDEX TABLE
The system checks whether the data object is an index table (standard or sorted table). The field symbol inherits all of the attributes (line type, table type, key) from the data object.
TYPE STANDARD TABLE
The system checks whether the data object is a standard internal table. The field symbol inherits all of the remaining attributes (line type, key) from the data object.
TYPE SORTED TABLE
The system checks whether the actual parameter is a sorted internal table. The field symbol inherits all of the remaining attributes (line type, key) from the data object.
TYPE HASHED TABLE
The system checks whether the actual parameter is a hashed internal table. The field symbol inherits all of the remaining attributes (line type, key) from the data object.
If you specify a type generically, remember that the attributes inherited by the field symbol from the program are not statically recognizable in the program. You can, at most, address them dynamically.
TYPES: BEGIN OF line,
         col1 TYPE c,
         col2 TYPE c,
       END OF line.
DATA: wa TYPE line,
      itab TYPE HASHED TABLE OF line WITH UNIQUE KEY col1,
      key(4) TYPE c VALUE 'COL1'.
FIELD-SYMBOLS <fs> TYPE ANY TABLE.
ASSIGN itab TO <fs>.
READ TABLE <fs> WITH TABLE KEY (key) = 'X' INTO wa.
The internal table ITAB is assigned to the generic field symbol <FS>, after which it is possible to address the table key of the field symbol dynamically. However, the static address
READ TABLE <fs> WITH TABLE KEY col1 = 'X' INTO wa.
is not possible syntactically, since the field symbol does not adopt the key of table ITAB until runtime. In the program, the type specification ANY TABLE only indicates that <FS> is a table. If the type had been ANY (or no type had been specified at all), even the specific internal table statement READ TABLE <FS> would not have been possible.
If you adopt a structured type generically (a structure, or a table with structured line type), the individual components cannot be addressed in the program either statically or dynamically. In this case, you would have to work with further field symbols and the method of assigning structures component by component.
Specifying the Type Fully
When you use the following types, the technical attributes of the field symbols are fully specified. The technical attributes of the data objects must correspond to those of the field symbol.
Typing
Technical attributes of the field symbol
TYPE D, F, I, or T
The field symbol has the technical attributes of the predefined elementary type
TYPE <type>
The field symbol has the type <type>. This is a data type defined within the program using the TYPES statement, or a type from the ABAP Dictionary
TYPE REF TO <cif>|DATA
The field symbol is a reference variable for the class or interface <cif>, or for a data object.
TYPE LINE OF <itab>
The field symbol has the same type as a line of the internal table <itab> defined using a TYPES statement or defined in the ABAP Dictionary
LIKE <f>
The field symbol has the same type as an internal data object <f> or structure, or a database table from the ABAP Dictionary
When you use a field symbol that is fully typed, you can address its attributes statically in the program, since they are recognized in the source code. If you fully specify the type of a field symbol as a reference or structured data object, you can address it as you would the data object itself, once you have assigned an object to it. So, for example, you could address the components of a structure, loop through an internal table, or create an object with reference to a field symbol.
REPORT demo_field_symbols_type .
DATA: BEGIN OF line,
         col1(1) TYPE c,
         col2(1) TYPE c VALUE 'X',
       END OF line.
FIELD-SYMBOLS <fs> LIKE line.
ASSIGN line TO <fs>.
MOVE <fs>-col2 TO <fs>-col1.
The field symbol <FS> is fully typed as a structure, and you can address its components in the program.
Attaching a structure to a field symbol
The STRUCTURE addition forces a structured view of the data objects that you assign to a field symbol.
FIELD-SYMBOLS <FS> STRUCTURE <s> DEFAULT <f>.
The structure <s> is either a structured local data object in the program, or a flat structure from the ABAP Dictionary. <f> is a data object that must be assigned to the field symbol as a starting field. However, this assignment can be changed later using the ASSIGN statement.
When you assign a data object to the field symbol, the system only checks that it is at least as long as the structure. You can address the individual components of the field symbol. It has the same technical attributes as the structure <s>.
If <s> contains components with type I or F, you should remember the possible effects of alignment. When you assign a data object to a field symbol with a structure, the data object must have the same alignment, otherwise a runtime error may result. In such cases, you are advised to assign such data objects only to structured field symbols, which retain the same structure as the field symbol at least over the length of the structure.
The STRUCTURE is obsolete; you should no longer use it. Field symbols defined using the STRUCTURE addition are a mixture of typed field symbols and a utility for casting to either local or ABAP Dictionary data types. If you want to define the type of a field symbol, include the TYPE addition in a FIELD-SYMBOLS statement. If you want to use casting, include the CASTING addition in an ASSIGN statement.
Example using the obsolete STRUCTURE addition:
DATA: wa(10) VALUE '0123456789'.
DATA: BEGIN OF line1,
         col1(3),
         col2(2),
         col3(5),
      END OF line1.
DATA: BEGIN OF line2,
         col1(2),
         col2 LIKE sy-datum,
      END OF line2.
FIELD-SYMBOLS: <f1> STRUCTURE line1 DEFAULT wa,
               <f2> STRUCTURE line2 DEFAULT wa.
WRITE: / <f1>-col1, <f1>-col2, <f1>-col3,
       / <f2>-col1, <f2>-col2.
Example using the correct syntax (TYPE and CASTING):
DATA: wa(10) VALUE '0123456789'.
DATA: BEGIN OF line1,
         col1(3),
         col2(2),
         col3(5),
      END OF line1.
DATA: BEGIN OF line2,
         COL1(2),
         COL2 LIKE sy-datum,
      END OF line2.
FIELD-SYMBOLS: <f1> LIKE line1.
ASSIGN wa TO <f1> CASTING.
FIELD-SYMBOLS: <f2> LIKE line2.
ASSIGN wa TO <f2> CASTING.
WRITE: / <f1>-col1, <F1>-col2, <F1>-col3,
       / <f2>-col1, <F2>-col2.
In both cases, the list appears as follows:
012 34 56789
01 2345/67/89
This example declares two field symbols to which different structures are attached. The string WA is then assigned to each of them. The output shows that the field symbols assign the strings component by component according to the type of the components.
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb387a358411d1829f0000e829fbfe/content.htm
THANKS
MRUTYUN

Change this code to retrieve more than one row in the drop out menu

How I can change this code, it only works when the cursor retrieves one row
like this
201410
Fall 2013
If it returns 2 rows, I only get the fir one in the drop out menu
201410
Fall 2013
201420
Spring 2014
I try to put a loop but it does not work..
I need to be able to display any term that is retrieve by the cursor (can be more than one)
Term Fall 2013
Spring 2014
PROCEDURE p_enter_term
IS
v_code stvterm.stvterm_code%TYPE;
v_desc   stvterm.stvterm_desc%TYPE;
CURSOR select_term_c IS
SELECT
stvterm_code,
stvterm_desc
from
stvterm,
sobterm
where
sobterm_dynamic_sched_term_ind = 'Y'
and sobterm_term_code = stvterm_code;
select_term_rec select_term_c%rowtype;
BEGIN
--check for open cursor
if select_term_c%isopen
then
close   select_term_c;
end if;
open    select_term_c;
fetch select_term_c into v_code,v_desc;
HTP.p ('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">');
   HTP.p ('<FORM ACTION="/test/btsewl.p_sel_crse" METHOD="POST" onSubmit="return checkSubmit()">');
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   HTP.p ('<TR>');
   HTP.p ('<TD class="dedefault"><LABEL for=term_input_id><SPAN class="fieldlabeltextinvisible">Term</SPAN></LABEL>');
   HTP.p ('<SELECT NAME="p_term" SIZE="1" ID="term_input_id">');
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    HTP.p ('</OPTION>');
   HTP.p ('</SELECT>');
   HTP.p ('</TD>');
   HTP.p ('</TR>');
   HTP.p ('</TABLE>');
   HTP.p ('<BR>');
   HTP.p ('<BR>');
   HTP.p ('<INPUT TYPE="submit" VALUE="Submit">');
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   HTP.p ('</FORM>');
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You are using the Eclipse Dali plugin to generate tables from your entities, not the EclipseLink JPA provider at runtime, so the settings in your persistence.xml are ignored. The documentation for the Dali table Wizards state it will drop and create tables. If you want to use the EclipseLink persistence settings to just create tables, access your persistence unit in a test case or deployment.

Change this code to accept the grades from the user..

how I will change this code
package regradesaverage;
public class ReGradesAverage {
     * @param args the command line arguments
    public static void main(String[] args) {
    int[] array = {87,68,94,100};
     int total = 0;
     for (int counter = 0; counter < array.length; counter++)
         total += array[counter];
     System.out.printf("Total sum of Grades : %d\n", total);
      System.out.printf("The Grade Average is: %d\n", total/array.length);
} to accept the grades from the user
I need to create a method called "average" that takes has an array of strings as a parameter and returns double.

893973 wrote:
I need to create a method called "average" that takes has an array of strings as a parameter and returns double.Exactly, you need to create a method.
You're the one in school doing the assignment, so you can't just unload your homework here.
If you want help, show us what you've tried and what you're having problems with.

Modifying value of dynamic field-symbol

I have a requirement in which i need to access columns of a dynamic internal table , manipulate and update back to the dynamic internal table
Names of the columns are also not fixed. This i am determing at the runtime.
Following is the code used :
Loop at <dyn_table> assigning <dyn_wa>.
lv_field = p_fields " This is the field i am taking from the selection screen which needds to be manipulated.
ASSIGN COMPONENT lv_field OF STRUCTURE <dyn_wa> TO <fs_value>.
refresh itab.
split <fs_value> at ',' into table itab.
loop at itab.
assign other fields of the source package to new splited table.
ASSIGN <dyn_wa> TO <dyn_wa1>.
I have to assign the valuein itab to the third field in field symbols.
( so the code would be added here)*******************
append <dyn_wa1> to <dyn_table1>.
endloop.
endloop.
Kindly suggest some solution for this above requiremnt.
Regards,
Amruta

Hello,
Just try to use the below codes in appropriate place and let me know if further issues..
LOOP AT itab.
ASSIGN COMPONENT 3 OF STRUCTURE <dyn_wa1> to <fs_value>.
CLEAR : <fs_value>.
<fs_value> = itab-field name.
APPEND <dyn_wa1> TO <dyn_table1>.
ENDLOOP.
Thanks!

Dynamic Field Symbols with Structures

Hello,
I am stuck on a piece of code and looking for some help. I am trying to figure out how to assign values in a structure of a dynamically defined field symbol to the structure inside another dynamically defined field symbol. Here is my code and some comments. Basically I am uploading data via a flatfile and placing it into a dynamically defined field symbol.
DATA:
lr_area     TYPE REF TO cl_sem_planarea_attributes,
lr_t_data   TYPE REF TO data,
lr_s_data   TYPE REF TO data,
lr_s_chas   TYPE REF TO data,
lr_s_kyfs   TYPE REF TO data.
FIELD-SYMBOLS:
<lt_data> TYPE STANDARD TABLE,
<ls_data> TYPE ANY,
<ls_chas> TYPE ANY,
<ls_kyfs> TYPE ANY.
DATA: ls_chasel TYPE upc_ys_chasel,
ls_charng TYPE upc_ys_charng.
FIELD-SYMBOLS:
<f> TYPE ANY,
<chas> TYPE TABLE,
<kyfs> TYPE ANY.
CALL METHOD cl_sem_planarea_attributes=>get_instance
EXPORTING       i_area      = i_area
RECEIVING       er_instance = lr_area.
CHECK sy-subrc = 0.
CREATE DATA lr_s_data TYPE (lr_area->typename_s_data).
ASSIGN lr_s_data->*   TO <ls_data>.
CREATE DATA lr_t_data TYPE (lr_area->typename_t_data).
ASSIGN lr_t_data->*   TO <lt_data>.
CREATE DATA lr_s_chas TYPE (lr_area->typename_s_chas).
ASSIGN lr_s_chas->*   TO <ls_chas>.
CREATE DATA lr_s_kyfs TYPE (lr_area->typename_s_kyfs).
ASSIGN lr_s_kyfs->*   TO <ls_kyfs>.
LOOP AT gt_file INTO ls_file.
CLEAR <ls_data>.
MOVE-CORRESPONDING ls_file TO <ls_kyfs>. " Map key figures
MOVE-CORRESPONDING ls_file TO <ls_chas>. " Map chars
*    MOVE-CORRESPONDING ls_file TO <ls_data>. " Map data
*        ASSIGN COMPONENT 'ls_chas' OF STRUCTURE <ls_Data> TO <chas> .
*        IF sy-subrc = 0.
**          <chas> = <ls_chas>.
*MOVE-CORRESPONDING <ls_chas> to <chas>.
*        ENDIF.
<chas> = <ls_chas>.
LOOP AT <chas> INTO ls_chasel.
READ TABLE ls_chasel-t_charng INTO ls_charng INDEX 1.
IF sy-subrc = 0 AND ls_charng-option = 'EQ'.
ASSIGN COMPONENT ls_chasel-chanm OF STRUCTURE <ls_chas> TO <ls_data>.
IF sy-subrc = 0.
<ls_data> = ls_charng-low.
ENDIF.
ENDIF.
ENDLOOP.
COLLECT <ls_data> INTO <lt_data>.
ENDLOOP.
Ls_chasel has 2 components:
Chanm (a char 30 which contains the component’s name)
T_CHARNG (a table with values for chanm)
Ls_data has 2 components:
S_chas (a structure with a list of components and values – same list as would have)
S_kyfs (a structure with a list of components and values – same list as would have)
Lt_data is a table of ls_data
I need to get the data in ls_chas into the ls_chas structure of ls_data and the ls_kyfs data into the ls_kyfs structure of ls_chas and append ls_chas to lt_data. Anything that is commented out is something I tried that didn't work. RIght now I get a dump at the 'loop at <chas> into ls_chasel' that the field symbol is not assigned.
Thanks for your help!

It looks like the the original poster didn't completely understand all he was doing. (This is why I always recommend getting an ABAP programmer in for what is, essentially, advanced ABAP programming, rather than someone "kind of familiar" with ABAP trying it - we're often available at very reasonable rates ).
It seems he's using ito_chasel to set the fixed values (which is in fact quite smart!). What isn't required, so far as I can tell without implementing, are any of the statements involving <ls_kyfs> or <ls_chas>.
The following should be sufficient (with the necessary declarations etc. - but really: omit <ls_kyfs> and <ls_chas> - I'm sure they're not needed and they confuse things).
" Go through the data from the flat file
LOOP AT gt_file INTO ls_file.
CLEAR <ls_data>.
" Transfer the characteristics
MOVE-CORRESPONDING ls_file TO <s_chas>.
" Transfer the key figure
MOVE-CORRESPONDING ls_file TO <s_kyfs>.
" Go through the fixed characteristic selections from the package
LOOP AT ito_chasel INTO ls_chasel.
    " We only care about the first value (if there is one).
    READ TABLE ls_chasel-s_charng INTO ls_charng INDEX 1.
    " Check there is a first value and that it is fixed
    CHECK sy-subrc IS INITIAL AND ls_charng EQ 'EQ'.
    " Get access to that characteristic
    FIELD-SYMBOLS <fixed_value> TYPE ANY.
    ASSIGN COMPONENT ls_chasel-chanm OF STRUCTURE <s_chas> TO <fixed_value>.
    " Make sure that it exists in the data structure
    CHECK sy-subrc IS INITIAL.
    " Set the value
    <fixed_value> = ls_charng-low.
ENDLOOP.
COLLECT <ls_data> INTO <lt_data>.
ENDLOOP.

How to read dynamic field symbol

hi all,
ASSIGN (tabname) TO <fs_tab>.
in above code i am passing dynamic table to fs_tab
can anyone tell me how can i read this field symbol........
in other words i want to read dynamic field symbols

Hi,
you could do without the field-symbols:
select from variable table
grtz,
Koen

Internal - dynamic - field-symbols

All,
This is my requirement
data in itab is
NAME     , COUNT , STRTDATE, ENDDATE, durinmin.
a         123      10/1/08    10/1/08    12
a         123      10/2/08    10/5/08    30
a         123      10/3/08    10/8/08    15
b         123      10/1/08    10/1/08    12
b         123      10/2/08    10/5/08    30
b         123      10/3/08    10/8/08    15
to be displayed like
name   count   10/1/08     10/2/08 10/3/08
a     123      12          30        15
b     123      12          30        15
This is how I am coding...
DATA:
r_dyn_table TYPE REF TO data,
r_wa_dyn_table TYPE REF TO data,
r_dock_ctnr TYPE REF TO cl_gui_docking_container,
r_alv_grid TYPE REF TO cl_gui_alv_grid,
t_fieldcat1 TYPE lvc_t_fcat, "with cell color
t_fieldcat2 TYPE lvc_t_fcat, "without cell color
wa_fieldcat LIKE LINE OF t_fieldcat1,
wa_cellcolors TYPE LINE OF lvc_t_scol,
wa_is_layout TYPE lvc_s_layo.
FIELD-SYMBOLS:
<t_dyn_table> TYPE STANDARD TABLE,
<wa_dyn_table> TYPE ANY,
<t_cellcolors> TYPE lvc_t_scol,
<w_field> TYPE ANY.
data begin of itab
NAME     ,
COUNT     ,
STRTDATE,
ENDDATE,
durinmin(6),
end of itab.
build catalog
form build_cat_for_table.
data : fname(6) value 'Day'.
data : cntr(3) type n, ctext(10).
wa_fieldcat-fieldname = 'NAME'.
wa_fieldcat-inttype = 'C'.
wa_fieldcat-outputlen = '32'.
wa_fieldcat-coltext = 'Name'.
wa_fieldcat-seltext = wa_fieldcat-coltext.
APPEND wa_fieldcat TO t_fieldcat1.
wa_fieldcat-fieldname = 'Wtavgtime'.
wa_fieldcat-inttype = 'C'.
wa_fieldcat-outputlen = '6'.
wa_fieldcat-coltext = 'Wt Avg Time'.
wa_fieldcat-seltext = wa_fieldcat-coltext.
APPEND wa_fieldcat TO t_fieldcat1.
*now add all the dates.
loop at dtrange.
    cntr = 1.
    concatenate fname cntr into fname.
    ctext = dtrange-ddate.
    wa_fieldcat-fieldname = fname.
    wa_fieldcat-inttype = 'C'.
    wa_fieldcat-outputlen = '6'.
    wa_fieldcat-coltext = ctext.
    wa_fieldcat-seltext = wa_fieldcat-coltext.
    cntr = cntr + 1.
    clear fname.
    APPEND wa_fieldcat TO t_fieldcat1.
endloop.
endform.
form fill_data.
data : fname(6) value 'Day'.
data : cntr(3) type n, ctext(10).
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = t_fieldcat1
IMPORTING
ep_table = r_dyn_table
EXCEPTIONS
generate_subpool_dir_full = 1
OTHERS = 2.
IF sy-subrc ne 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ASSIGN r_dyn_table->* TO <t_dyn_table>.
CREATE DATA r_wa_dyn_table LIKE LINE OF <t_dyn_table>.
ASSIGN r_wa_dyn_table->* TO <wa_dyn_table>.
loop at itab.
ASSIGN COMPONENT 'NAME' OF STRUCTURE <wa_dyn_table> TO <w_field>.
<w_field> = itab-name.
ASSIGN COMPONENT 'Wtavgtime' oF STRUCTURE <wa_dyn_table> TO <w_field>.
<w_field> = itab-wtavgtime.
cntr = 0.
do.
    cntr = 1.
    concatenate fname cntr into fname.
assign component fname of structure <wa_dyn_table> to <w_field>.
<w_field> = itab-
enddo.
endform.
This is where I am stucked how to put the dates as the columns while displaying and then put the duration in the rows corresponding to the columns.
Any help is appriciated.
THERE ARE LOT OF EXAMPLES on forum but some how I am not able to grasp it in my code, may be my knowledge of field symbols falling short. I guess I need to use Header / field groups but not clicking me .
Thanks in advance.

Hi,
I changed ur code a little.... i dont know whether it will work or not...
But it will give u some idea...
1. when preparing the Fieldcatalog.
*now add all the dates.
LOOP AT dtrange.
* cntr = 1.
* CONCATENATE fname cntr INTO fname.
fname = dtrange-ddate.    "---u may need to change this (but give a date here)
ctext = dtrange-ddate.
wa_fieldcat-fieldname = fname.
wa_fieldcat-inttype = 'C'.
wa_fieldcat-outputlen = '6'.
wa_fieldcat-coltext = ctext.
wa_fieldcat-seltext = wa_fieldcat-coltext.
cntr = cntr + 1.
CLEAR fname.
APPEND wa_fieldcat TO t_fieldcat1.
ENDLOOP.
2. When adding values...
SORT itab BY name.
LOOP AT itab.
ASSIGN COMPONENT 'NAME' OF STRUCTURE <wa_dyn_table> TO <w_field>.
<w_field> = itab-name.
ASSIGN COMPONENT 'Wtavgtime' OF STRUCTURE <wa_dyn_table> TO <w_field>.
<w_field> = itab-wtavgtime.
cntr = 0.
* DO.
*    cntr = 1.
*    CONCATENATE fname cntr INTO fname.
*    ASSIGN COMPONENT fname OF STRUCTURE <wa_dyn_table> TO <w_field>.
fname = itab-strtdate.                  "---same thing here
ASSIGN COMPONENT fname OF STRUCTURE <wa_dyn_table> TO <w_field>.
IF <w_field> IS ASSIGND.
    <w_field> = itab-durinmin.
ENDIF.
AT END OF name.
    MODIFY <t_dyn_table> FROM <wa_dyn_table>.
ENDAT.
* ENDDO.
ENDLOOP.

Read dynamic field symbol Work Area before append to dynamic table

Hi experts:
I have a dynamic work area but before doing an append to the dynamic table, I need to do some validation on some fields of the work area in order to decide to append it or not, but I don't know how...
More or less this is the example
loop at so_kschl.
    field = so_kschl-low.
    if <t_dyntable>-field = 0. "if the value of this field in dinamic table is 0.
don't append
    else.
       APPEND <fs_dyntable> TO <t_dyntable>.
    endif.
endloop.
Thank you very much for your help.
Miriam

Check this example, you read the component of the dynamic work area and assign it to a field-symbols. In this case, I validate that the entry is always 'a'.
DATA: i_lvc TYPE lvc_t_fcat WITH HEADER LINE,
      i_table TYPE REF TO data,
      l_style TYPE lvc_fname,
      l_warea TYPE REF TO data,
      l_name(7) VALUE 'VARCHAR'..
FIELD-SYMBOLS: <fs> TYPE table,
              <fs2> TYPE ANY,
              <fs3> TYPE ANY.
PARAMETERS p_char TYPE c LOWER CASE.
START-OF-SELECTION.
i_lvc-fieldname = 'Varchar'.
i_lvc-inttype = 'C'.
i_lvc-intlen = 1.
APPEND i_lvc.
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = i_lvc[]
IMPORTING
ep_table = i_table
e_style_fname = l_style.
ASSIGN i_table->* TO <fs>.
CREATE DATA l_warea LIKE LINE OF <fs>.
ASSIGN l_warea->* TO <fs2>.
<fs2> = p_char.
ASSIGN COMPONENT l_name OF STRUCTURE <fs2> TO <fs3>.
IF <fs3> = 'a'.
    WRITE: 'Component VARCHAR is a'.
* APPEND <fs2> TO <fs>.
ELSE.
    WRITE: 'Component VARCHAR is not a'.
ENDIF.

Read Dynamic Field Symbol

Hello ,
I have a field symbol where i am not aware of fields (Column Name) , i mean column names are Dynamic.
Problem is i need to read this field symbol value , how can i do it . It will always have 1 record
Example
Field Symbol looks something like this
<FS> Column Name dynamic -
>
A B C
Record
1 2 3
So now i have to refer to Second Column (i.e. is B in this case) , how should i do
What i tried .
1. <FS>-(Column Name in variable in brackets) - It doesnt work , Error Message unable to interpret the number B
2. <FS>[1] - Error out.

For a structured data object <s>, you can use the statement
<b>
ASSIGN COMPONENT <comp> OF STRUCTURE <s> TO <FS>.
</b>
to assign one of its components <comp> to the field symbol <FS>. You can specify the
component <comp> either as a literal or a variable. If <comp> is of type C or a structure which
has no internal tables as components, it specifies the name of the component. If <comp> has any
other elementary data type, it is converted to type I and specifies the number of the component.
In the assignment is successful, SY-SUBRC is set to 0. Otherwise, it returns 4.

Changing screen feild values through field symbols

hi
I am working on SAPMF02D user exit, it requires validation of searchterm1 feild, I have successfully completed this part with the help of field symbols, but the problem i am facing is that, after performing validation checks, searchterm1 feild would be updated, this I am not able to do, so far I have done the following:
DATA: fld(30) VALUE '(SAPLSZA1)ADDR1_DATA-SORT1'.
FIELD-SYMBOLS: <f1> TYPE ANY .
* Assign screen field values to field symbol
ASSIGN (fld) TO <f1>.
* get the value from field symbol into our field
IF <f1> IS ASSIGNED.
acc1 = <f1>.
ENDIF.
.. *Perform validation and updation on 'acc1'
* get the updated values back into screen feild
<f1> = acc1.
now this last thing is not working for me,, and the data does not get updated in screen/database....
I have tried using ' comit work' statement , but no use,
I require help on this issue and its quite urgent.
Thank you all for your time.

Thank you again for the reply,
I am sorry , I am not able to use to that FM either,, I just cannot understand the parameters it is taking and how to provide them.
I have already used the FM "DYNP_UPDATE_FIELDS" and "DYNP_UPDATE_FIELDS" , as:
<f1> = acc1.
scrfields-fieldname = 'ADDR1_DATA-SORT1'.
scrfields-fieldvalue = <f1>.
APPEND scrfields.
CALL FUNCTION 'DYNP_VALUES_UPDATE'
EXPORTING
    dyname                     = 'SAPLSZA1'
    dynumb                     = '0301'
TABLES
    dynpfields                 = scrfields[]
* EXCEPTIONS
*   INVALID_ABAPWORKAREA       = 1
*   INVALID_DYNPROFIELD        = 2
*   INVALID_DYNPRONAME         = 3
*   INVALID_DYNPRONUMMER       = 4
*   INVALID_REQUEST            = 5
*   NO_FIELDDESCRIPTION        = 6
*   UNDEFIND_ERROR             = 7
*   OTHERS                     = 8
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
but it did not helped my cause either..
Any help would be highly appreciated,
thank you

Dynamic Field-Symbol assignment - Short Dump

Create three programs as mentioned:
REPORT zforms.
*&      Form form_fs_assign
*       text
FORM form_fs_assign.
FIELD-SYMBOLS <fs> TYPE table.
DATA: fs_itab LIKE STANDARD TABLE OF tab_matnr WITH HEADER LINE.
break-point.
ASSIGN ('(ZPROGRAM1)ITAB[]') TO <fs>.
IF sy-subrc EQ 0.
    fs_itab[] = <fs>[].
    LOOP AT fs_itab.
      WRITE / fs_itab-matnr.
    ENDLOOP.
ELSE.
    Write:/ sy-repid, 'field-symbol not assigned'.
ENDIF.
ENDFORM.                    "form_fs_assign
REPORT zprogram1.
DATA: itab LIKE STANDARD TABLE OF tab_matnr WITH HEADER LINE.
itab-matnr = '1111'.
APPEND itab.
itab-matnr = '2222'.
APPEND itab.
WRITE:/ sy-repid.
PERFORM form_fs_assign IN PROGRAM zforms.
SUBMIT zprogram2.
REPORT zprogram2.
break-point.
*-- enter (ZPROGRAM1)ITAB[] in the variable and press enter
* the yellow icon stating that it doesn't exist appears
* but when the following form is called, it does checks
* the <fs> assign and doesnt gives any runtime error
* while in Pricing routine, the similar situation
* does gives the error
PERFORM form_fs_assign IN PROGRAM zforms.
*Execute zprogram1 and debug, works fine..*
*Execute zprogram2, (ZPROGRAM1)ITAB[] doesn't exist, still it doesn't leads to short dump*
*BUT, a very similar situation in a Pricing Requirment Routine leads to a short dump:*
*Runtime Error          GETWA_NOT_ASSIGNED*
*ShrtText    Field symbol has not yet been assigned.*
*Pricing Routine Code Snippet:*
*-- {3. -
determine qualifying prior invoices in memory----
FIELD-SYMBOLS: <fs_vbrk> TYPE table.
            FIELD-SYMBOLS: <fs_vbpa> TYPE table.
            FIELD-SYMBOLS: <fs_komv> TYPE table.
            DATA g_it_vbrk LIKE STANDARD TABLE OF vbrkvb WITH HEADER LINE.
            DATA g_it_vbpa LIKE STANDARD TABLE OF vbpavb WITH HEADER LINE.
            DATA g_it_komv LIKE STANDARD TABLE OF konv WITH HEADER LINE.
            DATA: l_vbrk_lines TYPE i.
            ASSIGN ('(SAPLV60A)XVBRK[]') TO <fs_vbrk>. <- "Error occurs here
            ASSIGN ('(SAPLV60A)XVBPA[]') TO <fs_vbpa>.
            ASSIGN ('(SAPLV60A)XKOMV[]') TO <fs_komv>.
            g_it_vbrk[] = <fs_vbrk>.
            g_it_vbpa[] = <fs_vbpa>.
            g_it_komv[] = <fs_komv>.
            DESCRIBE TABLE g_it_vbrk LINES l_vbrk_lines.
            READ TABLE g_it_vbrk INDEX l_vbrk_lines.
** remember to make vkorg and vtweg check for vbrk invoices
            DELETE g_it_vbrk WHERE vbeln = g_it_vbrk-vbeln.
            DELETE g_it_vbpa WHERE vbeln = g_it_vbrk-vbeln OR parvw <> 'WE'.
            DELETE g_it_komv WHERE knumv = g_it_vbrk-vbeln OR kschl <> 'ZF02' OR kbetr = 0.

Hello friends,
Rich,
The piece of code you suggested didn't work, and still led to the short dump.
Naimesh,
I agree that XVBRK is not declared globally, and if it is a Table, and declared as global work area using Tables, we could have used it directly using ASSIGN (VBRK)...
But, since its not the case, I am not able to do so...
Still, my requirement remains the same. I have to get the invoices created (in memory) but not saved during a collective billing run.
And the required data is available in the (SAPLV60A)XVBRK internal table, from which I am able to retrieve it for the first time, but clicking on the conditions tab in the item details leads to this short dump, becs (SAPLV60A)XVBRK[] isn't available at that moment. Still, if it is not available I suppose it should just set the sy-subrc to 4 instead of ending into a short-dump.
Jürgen Hartwig,
I know ZPROGRAM 1 can't work in ZPROGRAM 2, but it doesnt leads to the short dump either, does it? But in case of pricing it gives the run time error, this is exception I want to handle!
XVBRK is not declared globally, but since SAPLV60A calls a perform in SAPLV61A, it remains in the ABAP stack and we can access it using (SAPLV60A)XVBRK[] kind of assignment.
When the same is called during Item Conditions display, its PBO is in the stack but not other forms (in which it might have defined).
Rich, is there a way to get all the variables available in scope at any instance during runtime?
Well, Jürgen, I though it Germany it was called "schmutzig zuweisen" :-)... by the way, the same method has been used at several places in standard SAP programs with the sy-subrc check.
Reference Data:
when the assignment happens successfully, the ABAP Stack looks similar to:
Call | Program   | Subroutine
10   | SAPLV61A | some_subrountine
09   | SAPLV61A | some_subrountine
08   | SAPLV61A | some_subrountine
07   | SAPLV60A | some_subrountine
06   | SAPLV60A | some_subrountine
05   | SAPLV60A | some_subrountine
04   | SAPLV60A | some_subrountine
03   | SAPLV60A | some_subrountine
02   | SAPLV60A | some_XKOMV_AUBE..subrountine
01   | SAPLV60A | PAI_some_subrountine
when the assignment doesnt happens, the ABAP Stack looks similar to:
04   | SAPLV61A | some_subrountine
03   | SAPLV61A | some_subrountine
02   | SAPLV61A | some_subrountine
01   | SAPLV60A | PBO_some_subrountine

Read Data from the dynamic Field Symbol with key ?

Dear All,
I've 2 dynamic internal tables in the form of field symbols.
Now,I want to loop the item field symbol, read the header field symbol content and then move the corresponding into a final field symbol.
How to read the field symbol with key ?
When I'm trying to give the key clause in the paranthesis it's giving a syntax error.
Any clues ?
FYI .....
* Get the Dynamic Field and Value for the Date/Year and convert it into Year value
LOOP AT <fs_t_son> ASSIGNING <wa_son>.
    ASSIGN COMPONENT gwa_znrows_def-fieldname OF STRUCTURE <wa_son> TO <fs_year>.
    IF sy-subrc = 0.
      CLEAR gv_string.
      MOVE <fs_year> TO gv_string.
      CLEAR gv_year.
      gv_year = gv_string.
      <fs_year> = gv_year.
    ELSE.
* When the Date/year Field is not in the Table then -->
* Get the Dynamic Field and Value
      ASSIGN COMPONENT gwa_znrows_def-kfldname OF STRUCTURE <wa_rson> TO <fs_value>.
* Populate field for Dynamic Where condition
      CLEAR gv_value.
      CONCATENATE '''' <fs_value> '''' INTO gv_value.
      CONCATENATE gwa_znrows_def-kfldname '=' gv_value INTO gt_where SEPARATED BY space.
      APPEND gt_where.
      CLEAR gt_where.
      READ TABLE <fs_t_rson> ASSIGNING <wa_rson> ( gt_where ). "Key clause
    ENDIF. " if sy-subrc = 0. "Assign
ENDLOOP.
Thanks & regards,
Deepu.K

TYPES: BEGIN OF line,
         col1 TYPE c,
         col2 TYPE c,
       END OF line.
DATA: wa TYPE line,
      itab TYPE HASHED TABLE OF line WITH UNIQUE KEY col1,
      key(4) TYPE c VALUE 'COL1'.
FIELD-SYMBOLS <fs> TYPE ANY TABLE.
ASSIGN itab TO <fs>.
READ TABLE <fs> WITH TABLE KEY (key) = 'X' INTO wa.
The internal table itab is assigned to the generic field symbol <fs>, after which it is possible to address the table key of the field symbol dynamically. However, the static address
READ TABLE <fs> WITH TABLE KEY col1 = 'X' INTO wa.
is not possible syntactically, since the field symbol does not adopt the key of table itab until runtime. In the program, the type specification ANY TABLE only indicates that <fs> is a table. If the type had been ANY (or no type had been specified at all), even the specific internal table statement READ TABLE <fs> would not have been possible from a syntax point of view.

How to change this code to drag and drop image/icon into it??

Dear Friends:
I have following code is for drag/drop label, But I need to change to drag and drop image/icon into it.
[1]. code 1:
package swing.dnd;
import java.awt.*;
import javax.swing.*;
public class TestDragComponent extends JFrame {
     public TestDragComponent() {
          super("Test");
          Container c = getContentPane();
          c.setLayout(new GridLayout(1,2));
          c.add(new MoveableComponentsContainer());
          c.add(new MoveableComponentsContainer());
          pack();
          setVisible(true);
     public static void main(String[] args) {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
          catch (Exception ex) {
               System.out.println(ex);
          new TestDragComponent();
}[2]. Code 2:
package swing.dnd;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.awt.image.*;
import java.awt.dnd.DragSource;
import java.awt.dnd.DropTarget;
public class MoveableComponentsContainer extends JPanel {
     public DragSource dragSource;
     public DropTarget dropTarget;
     private static BufferedImage buffImage = null; //buff image
     private static Point cursorPoint = new Point();
     public MoveableComponentsContainer() {
          setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED, Color.white, Color.gray));
          setLayout(null);
          dragSource = new DragSource();
          ComponentDragSourceListener tdsl = new ComponentDragSourceListener();
          dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, new ComponentDragGestureListener(tdsl));
          ComponentDropTargetListener tdtl = new ComponentDropTargetListener();
          dropTarget = new DropTarget(this, DnDConstants.ACTION_MOVE, tdtl);
          setPreferredSize(new Dimension(400,400));
          addMoveableComponents();
     private void addMoveableComponents() {
          MoveableLabel lab = new MoveableLabel("label 1");
          add(lab);
          lab.setLocation(10,10);
          lab = new MoveableLabel("label 2");
          add(lab);
          lab.setLocation(40,40);
          lab = new MoveableLabel("label 3");
          add(lab);
          lab.setLocation(70,70);
          lab = new MoveableLabel("label 4");
          add(lab);
          lab.setLocation(100,100);
     final class ComponentDragSourceListener implements DragSourceListener {
          public void dragDropEnd(DragSourceDropEvent dsde) {
          public void dragEnter(DragSourceDragEvent dsde) {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dragOver(DragSourceDragEvent dsde) {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dropActionChanged(DragSourceDragEvent dsde) {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dragExit(DragSourceEvent dse) {
             dse.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
     final class ComponentDragGestureListener implements DragGestureListener {
          ComponentDragSourceListener tdsl;
          public ComponentDragGestureListener(ComponentDragSourceListener tdsl) {
               this.tdsl = tdsl;
          public void dragGestureRecognized(DragGestureEvent dge) {
               Component comp = getComponentAt(dge.getDragOrigin());
               if (comp != null && comp != MoveableComponentsContainer.this) {
                    cursorPoint.setLocation(SwingUtilities.convertPoint(MoveableComponentsContainer.this, dge.getDragOrigin(), comp));
                    buffImage = new BufferedImage(comp.getWidth(), comp.getHeight(), java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE);//buffered image reference passing the label's ht and width
                    Graphics2D graphics = buffImage.createGraphics();//creating the graphics for buffered image
                    graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));     //Sets the Composite for the Graphics2D context
                    boolean opacity = ((JComponent)comp).isOpaque();
                    if (opacity) {
                         ((JComponent)comp).setOpaque(false);
                    comp.paint(graphics); //painting the graphics to label
                    if (opacity) {
                         ((JComponent)comp).setOpaque(true);
                    graphics.dispose();
                    remove(comp);
                    dragSource.startDrag(dge, DragSource.DefaultMoveDrop , buffImage, cursorPoint, new TransferableComponent(comp), tdsl);
                    revalidate();
                    repaint();
     final class ComponentDropTargetListener implements DropTargetListener {
          private Rectangle rect2D = new Rectangle();
          Insets insets;
          public void dragEnter(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void dragExit(DropTargetEvent dte) {
               paintImmediately(rect2D.getBounds());
          public void dragOver(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void dropActionChanged(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void drop(DropTargetDropEvent dtde) {
               try {
                    paintImmediately(rect2D.getBounds());
                    int action = dtde.getDropAction();
                    Transferable transferable = dtde.getTransferable();
                    if (transferable.isDataFlavorSupported(TransferableComponent.COMPONENT_FLAVOR)) {
                         Component comp = (Component) transferable.getTransferData(TransferableComponent.COMPONENT_FLAVOR);
                         Point location = dtde.getLocation();
                         if (comp == null) {
                              dtde.rejectDrop();
                              dtde.dropComplete(false);
                              revalidate();
                              repaint();
                              return;
                         else {
                              add(comp, 0);
                              comp.setLocation((int)(location.getX()-cursorPoint.getX()),(int)(location.getY()-cursorPoint.getY()));
                              dtde.dropComplete(true);
                              revalidate();
                              repaint();
                              return;
                    else {
                         dtde.rejectDrop();
                         dtde.dropComplete(false);
                         return;
               catch (Exception e) {
                    System.out.println(e);
                    dtde.rejectDrop();
                    dtde.dropComplete(false);
}Thanks so much for any help.
Reagrds
sunny

Well, I don't really understand the DnD interface so maybe my chess board example will be easier to understand and modify:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=518707
Basically what you would need to do is:
a) on a mousePressed you would need to create a new JLabel with the icon from the clicked label and add the label to the glass pane
b) mouseDragged code would be the same you just repaint the label as it is moved
c) on a mouseReleased, you would need to check that the label is now positioned over your "drop panel" and then add the label to the panel using the panels coordinates not the glass pane coordinates.

(HELP)!!!!How to change this code to draw a rectangle?

* File: DrawLines.java
* This program allows users to create lines on the graphics
* canvas by clicking and dragging with the mouse.
import acm.graphics.*;
import acm.program.*;
import java.awt.event.*;
/** This class allows users to draw lines on the canvas */
public class DrawLines extends GraphicsProgram
implements MouseListener, MouseMotionListener {
/** Private instance variables */
private GLine line;
/** Initializes the program by enabling the mouse listeners */
public void init() {
addMouseListeners();
/** Called on mouse press to create a new line */
public void mousePressed(MouseEvent e) {
/** when the left button is pressed, create a zero length line */
line = new GLine(e.getX(), e.getY(), e.getX(), e.getY());
add(line);
/** Called on mouse drag to reset the endpoint */
public void mouseDragged(MouseEvent e) {
/** and now drag that line across the canvas
* the line will stop automatically when we lift our
* finger from the mouse
line.setEndPoint(e.getX(), e.getY());
This is drawline programm, but I want to change it to rectangle, use setbounds.
Help!

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      especially to a nuggetty problem, because they're interested in the answer.
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Change this code to dynamic(field symbols)

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