Table Control

[Former Member]

Hi Friends,

I have created a screen using screen painter. The screen is having 4 tabs (subscreen) and in all the subscreen, i have used table control to insert multiple lines in the table.

The problem I am getting is that, the data of table control part is not getting inserted into the table.

Kindly guide me the solution.

TIA.

Regards,

Mark K

[Former Member]

Hi Mark,

Please check in the subscreen whether you are retrieving the data for screen fields or not. If you are retrieving, check the internal table for table control and the screen fields are same. If not make it same. (If you are using different name then assign table control loop to screen fields work area.)

Regards

Bhupal Reddy

[Former Member]

hi

did u write loop - endloop statements both PAI and PBO side

check it out once

Regards,

GNK.

[raguraman_c]

Hi,

Here's a detailed explanation.

TABLE CONTROL are the screen elements used to display tabular data they can be called as screen tables( like STEP LOOP).To use table control we have to create it on the screen using SCREEN PAINTER(SE51) and declare a control variable of TYPE TABLEVIEW using CONTROLS statement in the ABAP program. We have to use LOOP .. ENDLOOP statement in both PBO and PAI with or without AT int_table parameter. IF AT int_table parameter is not used than we have to place a MODULE call between the LOOP...ENDLOOP statement to fill the screen table rows from the ABAP program in PBO and program our own scrolling functions using OK_CODE field. Having a parallel loop(at screen table rows & int table rows) by using parameter AT int_table makes the ABAP code simple. A special structure of type CXTAB_CONTROL is used to set/get various attributes of table control at runtime like CURRENT_LINE ,TOP_LINE.

<b>ABAP declaration</b>

CONTROLS: tab_con TYPE TABLEVIEW USING SCREEN nnnn

Here tab_con is the same name we used in screen for the table control.

This ABAP statement will declare a control variable that will be used to access

the table control , and set it's various attributes like number of fixed columns(tab_con-FIXED_COLS) ,total number of records it will display(tab_con-LINES).It is of type CXTAB_CONTROL and is a deep structure(structure containing structures).

REFRESH CONTROL tab_con FROM SCREEN nnnn

This ABAP statement will initialize the table control on the screen nnnn to its initial values.

<b>PBO processing</b>

In PBO we have to use the screen LOOP ...ENDLOOP statement , with or without

intenal table.

LOOP WITH CONTROL tab_con.

MODULE fill_tab_con.

ENDLOOP.

Here a module should be called between the loop endloop statement to transfer

data from th ABAP program to the screen table through a structure.This module

should use the CURRENT_LINE attribute of the table control variable to get the

current screen table record index to read the data from the internal table into a work area.

e.g.

READ TABLE int_table INDEX tab_con-CURRENT_LINE

The record read will be placed in the header line of the internal table and will be available to the similarly named screen fields or if these are different it can be written explicitly. e.g.

screen_field_name = int_table-field_name

...

.

LOOP AT int_table INTO workarea WITH CONTROL tab_con CURSOR i FROM

n1 TO n2.

ENDLOOP.

Here the module call is not required to fill the screen table.The CURSOR parameter is a integer of type I indicating which absolute internal table line should be the first to display on the table control .FROM n1 TO n2 can be used to restrict the starting line and ending line number of the internal table , they are of type SY-TABIX.

In both cases before the LOOP statement a module should be called which is generally for setting of status ,in which we should fill the LINES attribute (tab_con-LINES ) of the control with the total number of internal table records,doing this ensures correct and automatic scrolling.

The ABAP statement DESCRIBE TABLE int_table LINES lines can be used to get the total lines in an int table.

<b>PAI Processing</b>

We have to use LOOP ... ENDLOOP in PAI so that data can transfer fro table control to ABAP program. If we want to write changes to the data we should

call a module between the LOOP ... ENDLOOP. The MODULE call to process user commands (SY-UCOM) should be called after the ENDLOOP statement.

e.g.

PROCESS AFTER INPUT

MODULE mod AT EXIT-COMMAND.

LOOP AT itab_table or LOOP "depending on whether we are using AT int_table

MODULE modify_int_table.

ENDLOOP.

MODULE user_command.

In the MODULE call modify_int_table we can use

MODIFY int_table FROM workarea INDEX tab_con-CURRENT_LINE

or we can use

int_table-field_name = screen_field_name.

Feel free to revert back.

--Ragu

[Former Member]

Can u give me complete code for this table control.

Regards,

[gopi_narendra]

Hi Mark

go thru these examples which will give a good idea abt table controls and how to save the data in the table control.

<b>demo_dynpro_tabcont_loop

demo_dynpro_tabcont_loop_at

RSDEMO_TABLE_CONTROL</b>

Regards

- Gopi