Hide statement

[Former Member]

Hi all,

Why do we use hide statement, I have never used it.

I have seen an example of it used 'at line-selection'.

What does it do?

Thanks.

Deniz.

[Former Member]

<b>Syntax</b>

HIDE dobj.

<b>Effect</b>

This statement stores the content of a variable dobj together with the current list line whose line number is contained in sy-linno in the hide area of the current list level. The data type of the variables dobj must be flat and no field symbols can be specified that point to rows of internal tables, and no class attributes can be specified. The stored values can be read as follows:

For each user action in a displayed screen list that leads to a list result, all the row values stored using HIDE - that is, the row on which the screen cursor is positioned at the time of the event - are assigned to the respective variables.

If a list row of an arbitrary list level is read or modified using the statements READ LINE or MODIFY LINE, all the values of this row stored using HIDE are assigned to the respective variables.

<b>

Notes</b>

The HIDE statement works independently of whether the list cursor was set. In particular, variables for empty list rows can be stored - that is, rows in which the list cursor was positioned using statements like SKIP.

The HIDE statement should be executed immediately at the statement that has set the list cursor in the row.

Outside of classes, prior to release 7.0, for dobj constants and literals could still be specified. However, it was not possible to read them at list events and in the READ LINE statement.

<b>Example</b>

Storing square numbers and cubic numbers for a list of numbers. The example shows that arbitrary variables can be stored independently of row content. In the real situation, one would more likely store only the number and execute the calculation, when required, in the the event block for AT LINE-SELECTION.

REPORT ...

DATA: square TYPE i,

cube TYPE i.

START-OF-SELECTION.

FORMAT HOTSPOT.

DO 10 TIMES.

square = sy-index ** 2.

cube = sy-index ** 3.

WRITE / sy-index.

HIDE: square, cube.

ENDDO.

AT LINE-SELECTION.

WRITE: square, cube.

[Former Member]

hi

Check this thread

Regards

Alfred

[RaymondGiuseppi]

Look at thread :

Regards

[Former Member]

Just search forum with keyword 'HIDE' & you will get all that you need..

Arya

[Former Member]

Re: Hide Statement in Reports

Posted: Jul 11, 2007 1:19 PM in response to: sanjanak Reply E-mail this post

Hi,

HIDE

The HIDE statement is one of the fundamental statements for interactive reporting. You use the HIDE technique when creating a basic list. It defines the information that can be passed to subsequent detail lists.

The HIDE Technique

You use the HIDE technique while creating a list level to store line-specific information for later use. To do so, use the HIDE statement as follows:

HIDE <f>.

This statement places the contents of the variable <f> for the current output line (system field SY-LINNO) into the HIDE area. The variable <f> must not necessarily appear on the current line.

To make your program more readable, always place the HIDE statement directly after the output statement for the variable <f> or after the last output statement for the current line.

As soon as the user selects a line for which you stored HIDE fields, the system fills the variables in the program with the values stored. A line can be selected

by an interactive event.

For each interactive event, the HIDE fields of the line on which the cursor is positioned during the event are filled with the stored values.

by the READ LINE statement.

You can think of the HIDE area as a table, in which the system stores the names and values of all HIDE fields for each list and line number. As soon as they are needed, the system reads the values from the table.

or

We can use HIDE technique while creating LIST level to store line -specific information for later use.

syntax: HIDE <variable>.

this statement place the contents of the variable <variable> for the current output line(SY-LINNO) into the HIDE area.

you can think of the HIDE area as a table, in which the system stores the field name, field contents and line number in which field exisisting. as soon as they are needed the system reads the values from the table(HIDE) using READ LINE statement.

Keep in mind while working with HIDE.

1) Allways keep HIDE <variable> statement after WRITE statement for more readable format.

2) All way keep HIDE <variable> statement inside the LOOP statement, because syatem stores all the hide variable in system genarated table space, we can process table data throug it's work area only.

Sample Program.

Report Zreport_hide.

*table work area

tables: lfa1,ekko,ekpo.

*selection-screen logic

select-options: s_lifnr for lfa1-lifnr obligatory.

*logic for creating internal table

data: begin of it _lfa1 occurs 0,

it_lifnr like lfa1-lifnr,

name1 like lfa1-name1,

end of it_lfa1.

data: begin of it _ekko occurs 0,

it_ebeln like ekko-ebeln,

aedat like ekko-aedat,

end of it_ekko.

• logic for genarating basic list

start-of-selection.

select lifnr name1 from lfa1 into table it_lfa1 where lifnr in s_lifnr.

*processing the data.

loop at it_lfa1.

write:/ it_lfa1-lifnr,

it_lfa1-name1,'

HIDE it_lfa1-lifnr. "here hide the varible lifnr

endloop.

*logic for genarating secondary list

at line-selection.

case sy-lsind.

when 1.

select ebeln aedat from ekko into table it_ekko where lifnr = it_lfa1-lifnr.

*processing seconadry list data.

loop at it_ekko.

write:/ it_ekko-ebeln,

it_ekko-aedat,

endloop.

or

The HIDE Technique

You use the HIDE technique while creating a list level to store line-specific information for later use. To do so, use the HIDE statement as follows:

HIDE <f>.

This statement places the contents of the variable <f> for the current output line (system field SYLINNO) into the HIDE area. The variable <f> must not necessarily appear on the current line.

To make your program more readable, always place the HIDE statement directly after the output statement for the variable <f> or after the last output statement for the current line.

As soon as the user selects a line for which you stored HIDE fields, the system fills the variables in the program with the values stored. A line can be selected

by an interactive event.

For each interactive event, the HIDE fields of the line on which the cursor is positioned during the event are filled with the stored values.

by the READ LINE statement.

You can think of the HIDE area as a table, in which the system stores the names and values of all HIDE fields for each list and line number. As soon as they are needed, the system reads the values from the table.

[Former Member]

HIDE

The HIDE statement is one of the fundamental statements for interactive reporting. You use the HIDE technique when creating a basic list. It defines the information that can be passed to subsequent detail lists.

The HIDE Technique

The example below presents some of the essential features of interactive reporting. The basic list contains summarized information. With the HIDE technique, it is possible to branch to more detailed information on subsequent lists.

The following program is connected to the logical database F1S.

REPORT demo_list_hide NO STANDARD PAGE HEADING.

TABLES: spfli, sbook.

DATA: num TYPE i,

dat TYPE d.

START-OF-SELECTION.

num = 0.

SET PF-STATUS 'FLIGHT'.

GET spfli.

num = num + 1.

WRITE: / spfli-carrid, spfli-connid,

spfli-cityfrom, spfli-cityto.

HIDE: spfli-carrid, spfli-connid, num.

END-OF-SELECTION.

CLEAR num.

TOP-OF-PAGE.

WRITE 'List of Flights'.

ULINE.

WRITE 'CA CONN FROM TO'.

ULINE.

TOP-OF-PAGE DURING LINE-SELECTION.

CASE sy-pfkey.

WHEN 'BOOKING'.

WRITE sy-lisel.

ULINE.

WHEN 'WIND'.

WRITE: 'Booking', sbook-bookid,

/ 'Date ', sbook-fldate.

ULINE.

ENDCASE.

AT USER-COMMAND.

CASE sy-ucomm.

WHEN 'SELE'.

IF num NE 0.

SET PF-STATUS 'BOOKING'.

CLEAR dat.

SELECT * FROM sbook WHERE carrid = spfli-carrid

AND connid = spfli-connid.

IF sbook-fldate NE dat.

dat = sbook-fldate.

SKIP.

WRITE / sbook-fldate.

POSITION 16.

ELSE.

NEW-LINE.

POSITION 16.

ENDIF.

WRITE sbook-bookid.

HIDE: sbook-bookid, sbook-fldate, sbook-custtype,

sbook-smoker, sbook-luggweight, sbook-class.

ENDSELECT.

IF sy-subrc NE 0.

WRITE / 'No bookings for this flight'.

ENDIF.

num = 0.

CLEAR sbook-bookid.

ENDIF.

WHEN 'INFO'.

IF NOT sbook-bookid IS INITIAL.

SET PF-STATUS 'WIND'.

SET TITLEBAR 'BKI'.

WINDOW STARTING AT 30 5 ENDING AT 60 10.

WRITE: 'Customer type :', sbook-custtype,

/ 'Smoker :', sbook-smoker,

/ 'Luggage weigtht :', sbook-luggweight UNIT 'KG',

/ 'Class :', sbook-class.

ENDIF.

ENDCASE.

At the event START-OF-SELECTION, the system sets the status FLIGHT for the basic list. In status FLIGHT, function code SELE (text SELECT) is assigned to function key F2 and to a pushbutton. So the event AT USER-COMMAND is triggered if the user double-clicks, presses F2, or chooses the pushbutton SELECT.

The three fields spfli-carrid, spfli-connid, and num are stored in the HIDE area while creating the basic list. After selecting a line, the system displays the detail list defined in the AT USER-COMMAND event for function code SELE. In the AT USER-COMMAND event, the system refills all fields of the selected line that were stored in the HIDE area. You use num to check whether the user selected a line from the actual list. The detail list has status BOOKING, where F2 is assigned to function code INFO (text: Booking Information). The detail list presents data that the program selected using the HIDE fields of the basic list. For each list line displayed, the system stores additional information in the HIDE area.

If the user selects a line of the detail list, the system displays the stored information in a dialog box with the status WIND. For the WIND status, the default values for the status type Dialog box have been adopted with the list status adjustment. The program uses sbook-bookid to check whether the user selected a valid line.

[Former Member]

Hi,

Hide statement is used in the intractive report.

If you want to go further level by clicking on any field then in that case we use HIDE statment.

The HIDE statement is one of the fundamental statements for interactive reporting. You use the HIDE technique when creating a basic list. It defines the information that can be passed to subsequent detail lists.

The example below presents some of the essential features of interactive reporting. The basic list contains summarized information. With the HIDE technique, it is possible to branch to more detailed information on subsequent lists.

The following program is connected to the logical database F1S.

REPORT demo_list_hide NO STANDARD PAGE HEADING.

TABLES: spfli, sbook.

DATA: num TYPE i,

dat TYPE d.

START-OF-SELECTION.

num = 0.

SET PF-STATUS 'FLIGHT'.

GET spfli.

num = num + 1.

WRITE: / spfli-carrid, spfli-connid,

spfli-cityfrom, spfli-cityto.

HIDE: spfli-carrid, spfli-connid, num.

END-OF-SELECTION.

CLEAR num.

TOP-OF-PAGE.

WRITE 'List of Flights'.

ULINE.

WRITE 'CA CONN FROM TO'.

ULINE.

TOP-OF-PAGE DURING LINE-SELECTION.

CASE sy-pfkey.

WHEN 'BOOKING'.

WRITE sy-lisel.

ULINE.

WHEN 'WIND'.

WRITE: 'Booking', sbook-bookid,

/ 'Date ', sbook-fldate.

ULINE.

ENDCASE.

AT USER-COMMAND.

CASE sy-ucomm.

WHEN 'SELE'.

IF num NE 0.

SET PF-STATUS 'BOOKING'.

CLEAR dat.

SELECT * FROM sbook WHERE carrid = spfli-carrid

AND connid = spfli-connid.

IF sbook-fldate NE dat.

dat = sbook-fldate.

SKIP.

WRITE / sbook-fldate.

POSITION 16.

ELSE.

NEW-LINE.

POSITION 16.

ENDIF.

WRITE sbook-bookid.

HIDE: sbook-bookid, sbook-fldate, sbook-custtype,

sbook-smoker, sbook-luggweight, sbook-class.

ENDSELECT.

IF sy-subrc NE 0.

WRITE / 'No bookings for this flight'.

ENDIF.

num = 0.

CLEAR sbook-bookid.

ENDIF.

WHEN 'INFO'.

IF NOT sbook-bookid IS INITIAL.

SET PF-STATUS 'WIND'.

SET TITLEBAR 'BKI'.

WINDOW STARTING AT 30 5 ENDING AT 60 10.

WRITE: 'Customer type :', sbook-custtype,

/ 'Smoker :', sbook-smoker,

/ 'Luggage weigtht :', sbook-luggweight UNIT 'KG',

/ 'Class :', sbook-class.

ENDIF.

ENDCASE.

At the event START-OF-SELECTION, the system sets the status FLIGHT for the basic list. In status FLIGHT, function code SELE (text SELECT) is assigned to function key F2 and to a pushbutton. So the event AT USER-COMMAND is triggered if the user double-clicks, presses F2, or chooses the pushbutton SELECT.

The three fields spfli-carrid, spfli-connid, and num are stored in the HIDE area while creating the basic list. After selecting a line, the system displays the detail list defined in the AT USER-COMMAND event for function code SELE. In the AT USER-COMMAND event, the system refills all fields of the selected line that were stored in the HIDE area. You use num to check whether the user selected a line from the actual list. The detail list has status BOOKING, where F2 is assigned to function code INFO (text: Booking Information). The detail list presents data that the program selected using the HIDE fields of the basic list. For each list line displayed, the system stores additional information in the HIDE area.

If the user selects a line of the detail list, the system displays the stored information in a dialog box with the status WIND. For the WIND status, the default values for the status type Dialog box have been adopted with the list status adjustment. The program uses sbook-bookid to check whether the user selected a valid line.

The program itself sets all page headers and the title bar of the dialog box.