‎2008 May 05 9:34 AM
Hi all,
can anyone explain me what is meant by "table control".
by,
raghul
‎2008 May 05 9:37 AM
hi,
A table control is an area on the screen in which the system displays data in tabular form. It is processed
using a loop. The top line of a table control is the header line, which is distinguished by a gray separator.
Within a table control, you can use table elements, key words, templates, checkboxes, radio buttons,
radio button groups, and pushbuttons. A line may have up to 255 columns; each column may have a title.
You can display or enter single structured lines of data using a table control.
Features:
Resizable
table for displaying and editing data
The user or program can change the column width and position, save the changes, and reload them later
Check column for marking lines - marked lines are highlighted in a different color
Line selection: Single lines, multiple lines, all lines, and deselection
Column headings double as pushbuttons for marking columns
Scrollbars for horizontal and vertical scrolling
You can fix any number of key (leading) columns
Cell attributes are variable at runtime
The table control contains a series of attributes that are controlled entirely at the presentation server.
These are:
Horizontal scrolling using the scrollbar in the table control
Swapping columns
Changing column widths
Selecting columns
Selecting lines
The PAI processing block is triggered when you scroll vertically in the table control or save the user
configuration.
Follow this link to create a table control with screen shots.
Hope this helps.
Edited by: Runal Singh on May 5, 2008 2:09 PM
‎2008 May 05 9:40 AM
Hi,
These 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.
ABAP declaration
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.
PBO processing
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.
PAI Processing
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.
Regards
Kannaiah
‎2008 May 05 9:53 AM
‎2008 May 05 9:54 AM
hi there...
table control is nothing dude. its just a tool which shows the information in the form of a table. i think the above replies will confuse u more. So dont think about much. i would advice u to use the table control wizard to create a table control for yourself and u will automatically realize the use of it.
do reward anyways.