abap event-driven programming &selection screen

ABAP Chapter 4

Event-driven Programming Selection Screen

Event-driven Programming

Application Driven Programming

REPORT ztest.DATA: today TYPE D.today = ‘19991231’.today = today + 1.WRITE: / today.

Event-Driven Programming

Data tmp type i.- -Start of Selection.

Write: / ‘This is ’. Write: / ‘Basic List’.

-At line selection. Write: / ‘This is ’. Write: ‘Detail List’.

Events

START-OF-SELECTION. END-OF-SELECTION. TOP-OF-PAGE. TOP-OF-PAGE DURING LINE-

SELECTION. END-OF-PAGE. AT LINE-SELECTION. AT USER-COMMAND. INITIALIZATION. AT SELECTION-SCREEN.

AT LINE-SELECTION Event(Drill-down Report)

AT LINE-SELECTION

- -Start of selection. Write : ‘Basic List’.

-At Line selection. Write : ‘Detail List’.

Basic list

DoubleClick

Navigating Between Lists

Basic list

Detail list 20Exit

Detail list 1

Detail list 2

ABAP Editor

Back

Cancel

Detail List and SY-LSIND

Start-of-selection. write: ‘Basic List’.

-AT Line selection. CASE -sy lsind. WHEN 1. write: ‘Detail List #1’. 2 22

write: ‘Detail List #2’. .

Detail list 2SY-LSIND = 2

Detail list 1SY-LSIND = 1

Basic list

At Line Selection

Tables customers.- -Start of Selection.

Select * from customers. - write : / customers name . Endselect.

-At line selection. Write: ‘You Choose :’ , custome

-rs name.

At Line Selection(Hide Statement)


Select * from customers. -write : / customers name.

-Hide customers name. Endselect.

-At line selection. Write: ‘You Choose :’ , -customers name.

HIDE area of list level 1

line Field name Value1 customers-name John 2 customers-name Peter

3 customers-name David

JohnPeterDavid

List Buffer

Hide Area in ListHide Area in ListDialog WP

TaskHandler

DYNPRO Processor

ABAP Processor

Database

Local Memory

Memory Space

DB Interface

List buffer

Result Set Memory

Database Server

Application Server

3 | David | ....

Customers Structure

JohnPeterDavid

Basic List

HIDE area of list level 1line Field name Value1 customers-name John 2 customers-name Peter3 customers-name David





JohnPeterPeterDavid

You choose : Peter

Basic List Detail List

SY-LILLI = 2

3 | Peter | ....

Customers Structure

1

2

3

4

At Line-selection

5

HIDE area of list level 1line Field name Value1 customers-id 00000001 1 customers-name John

2 customers-id 000000022 customers-name Peter

…



Select * from customers. write : / customers-id, -customers name. Hide: customers-id, -customers name. Endselect.

-At line selection. Write: ‘You Choose :’ , customers-id, -customers name.

00000001 John00000002 Peter00000003 David

List Buffer



line Field name Value… … …2 customers-id 00000002 2 customers-name Peter

3 customers-id 00000003…

00000001 John00000002 Peter00000002 Peter00000003 David

You choose : 00000002 Peter


SY-LILLI = 2

2 | Peter | ....

Customers Structure

1

2

3

4

At Line-selection

5

At Line Selection

Tables: spfli,sflight.Start-of-selection. Select * from spfli. write : / spfli-carrid, spfli-

connid, spfli-cityto. Hide : spfli-carrid, spfli-

connid. Endselect.At Line-selection. select * from sflight where carrid

= spfli-carrid and connid =

spfli-connid. write: / spfli-carrid, spfli-

connid,sflight-fldate. endselect.

Basic List (SPFLI)

Detail List (SFLIGHT)

Exercise

zcustomers

zsales

Basic List

Detail Listzcustomers-id

zcustomers-namezsales-cust_id

zsales-prod_id

zsales-qty

Hide Statement (Report Heading)

Tables customers.Top-of-page. write: / ‘Customers Name’. uline.

- -Start of Selection. Select * from customers. -write : / customers name.

-Hide customers name. Endselect.

-At line selection. -Write: ‘You Choose :’ , customers name.




Customers Name-----------------------------JohnPeterDavid

List Buffer





Customers Name-----------------------------JohnPeterPeterDavid

You choose : Peter


SY-LILLI = 4

3 | Peter | ....

Customers Structure

1

2

3

4

At Line-selection

5

Invalid Line Selection …TOP-OF-PAGE. …Hide: spfli-carrid, spfli-connid.…Endselect.Clear: spfli-carrid,spfli-connid.At Line-selection. Select * From sflight Where carrid = spfli-carrid

and connid = spfli-connid. Write: / spfli-carrid, spfli-

connid ,sflight-fldate. Endselect. Clear: spfli-carrid,spfli-connid.

Page Heading

- -Start of selection. Write: ‘Basic List’.

-At Line selection. Write: ‘Detail List’.

- -Top of page. -Write: ‘Header Basic List’.

- - -Top of page During Line selection. -Write: ‘Header Detail List’.

Detail List Page Heading...top-of-page during line-selection. case sy-lsind. when 1. write: / ‘Detail List Header #1’. when 2. write: / ‘Detail List Header #2’. endcase...........

Column Selection...data: fieldname(30)....start-of-selection. select * from spfli. write: / spfli-carrid,15 spfli-connid, 25 spfli-cityto. hide: spfli-carrid,spfli-connid. endselect.at line-selection. case sy-lsind. when 1. get cursor field fieldname. case fieldname. when 'SPFLI-CARRID'. select single * from scarr where carrid = spfli-carrid. if sy-subrc = 0. write: / spfli-carrid,scarr-carrname. endif. when 'SPFLI-CONNID'. select * from sflight where carrid = spfli-carrid and connid = spfli-connid. ...

Column Selection : Value...data: fieldname(30),fieldvalue(30)....start-of-selection. select * from spfli. write: / spfli-carrid,15 spfli-connid, 25 spfli-cityto. hide: spfli-carrid,spfli-connid. endselect.at line-selection.case sy-lsind. when 1. get cursor field fieldname value fieldvalue. case fieldname. when 'SPFLI-CARRID'. select single * from scarr where carrid = spfli-carrid. if sy-subrc = 0. write: / spfli-carrid,scarr-carrname. endif. when 'SPFLI-CONNID'. ...

Creating List in Modal Dialog Box

...at line-selection. window starting at 10 10 ending at 65 20. select * from sflight where carrid = spfli-carrid and connid = spfli-connid. write: / sflight-carrid,sflight-connid,sflight-

fldate. endselect. ...

ExerciseBasic List

Detail List

zsales

zsalerepszproducts

zsales-cust_id

zsales-prod_id

zsales-qty

zsales-sale_id

zsalereps-sale_id

zsalereps-namezproducts-on_hand

zproducts-p_id

Drill-Down 2 Levels Example

12

Detail list level 1 (ZSALES)

Detail list level 2 (ZPRODUCTS)

Basic list (ZCUSTOMERS)

Program ExampleSTART-OF-SELECTION. SELECT * FROM zcustomers. WRITE: / zcustomers-id COLOR 4 HOTSPOT, 15 zcustomers-name. HIDE: zcustomers-id,zcustomers-name. ENDSELECT. CLEAR zcustomers-id.

AT LINE-SELECTION. CASE sy-lsind. WHEN 1. GET CURSOR FIELD fieldname. IF fieldname = 'ZCUSTOMERS-ID'. SELECT * FROM zsales WHERE cust_id = zcustomers-id. IF sy-dbcnt = 1. WRITE: / zcustomers-id,15 zcustomers-name,30 zsales-prod_id HOTSPOT, 45 zsales-qty. HIDE: zsales-prod_id. ELSE. WRITE: /30 zsales-prod_id HOTSPOT, 45 zsales-qty. HIDE: zsales-prod_id. ENDIF. ENDSELECT. CLEAR: zcustomers-id,zsales-prod_id. ENDIF. WHEN 2. GET CURSOR FIELD fieldname. IF fieldname = 'ZSALES-PROD_ID'. SELECT SINGLE * FROM zproducts WHERE p_id = zsales-prod_id. IF sy-subrc = 0. WRITE: / zproducts-p_id,15 zproducts-prod_name,38 zproducts-on_hand. ENDIF. CLEAR zsales-prod_id. ENDIF. ENDCASE.

Hide Level 1

Hide Level 2

Drill Down Level 1

Drill Down Level 2

ExerciseBasic List

Drill-down Level 1

Drill-down Level 2

Drill-down Level 3

SCARR

SPFLI

SFLIGHT

SBOOK

GUI Interface (User Interface)

GUI Interface - SET PF STATUS …. => GUI

Status SET TITLEBAR …. =>

GUI Title

AT USER-COMMAND Event

SET PF-STATUS ‘TEST’. ...AT USER-COMMAND. CASE -sy ucomm. WHEN ‘CODE1’. . WHEN ‘CODE2’. . ENDCASE.

Standard Toolbar : System Function System function do not trigger event AT USER-

COMMAND %EX = Exit %PC = Save to file %SC = Find %SC+ = Find next %ST = Save in report tree BACK = Back RW = Cancel PRI = Print P- = Scroll to previous page P-- = Scroll to first page P+ = Scroll to next page P++ = Scroll to last page

Alternative with AT USER-COMMAND

REPORT ZRSDEM002. . START-OF-SELECTION - SET PF STATUS ‘BASE’. . . -AT USER COMMAND. -CASE SY UCOMM. WHEN ‘CARR’. SET PF_STATUS SPACE. “Set to standard GUI

interface . WHEN ‘FLIG’. - SET PF STATUS ‘FLIG’. WRITE … . .

GUI Status Excluding Function Code

REPORT ztest. ... - SET PF STATUS ‘0100’. ... -AT USER COMMAND. -CASE SY UCOMM. WHEN ‘LIST’. - SET PF STATUS ‘0100’ excluding ‘LIST’. . WHEN ‘DISP’. - SET PF STATUS ‘0100’ excluding ‘DISP’. WRITE … . ....

GUI Status Excluding Function Code

REPORT ztest.DATA exctab(10) occurs 0 with header line. ....START-OF-SELECTION. - SET PF STATUS ‘0100’. ... exctab = ‘LIST’. APPEND exctab. exctab = ‘TEST’. APPEND exctab. ...

-AT USER COMMAND. -CASE SY UCOMM. WHEN ‘LIST’. - SET PF STATUS ‘0100’ excluding exctab.

GUI TITLE ... SET TITLEBAR ‘0100’.

ABAP Practice

Selection Screen

Selection Screen

PARAMETERS Statement SELECT-OPTIONS

Statement

parameters

Parameters

PARAMETERS 1: tmp (10) TYPE C, 210tmp ( ) TYPE C lower case, 3tmp LIKE sy-datum default

sy-datum, 4tmp TYPE D 2222222 199912‘31’,

5tmp TYPE i, tmp6(5) TYPE N.

Parameters Example

Tables customers.Parameters pid like customers-id.START-OF-SELECTION. select single * from customers where

id = pid. if sy-subrc = 0. write: / customers-name. else. write: / ‘No data found’. endif.

Selection-Text By default , the System displays the

name of the selection as text on the Selection Screen

You Should use the Text element/Selection texts function to store a text line for each Selection Criterion.

Check box

Parame ters tmp as checkbo x default ‘X’.

Radio Button

Parameters: test1 Radiobutton group grp1,

test2 Radiobutton group grp1.

Required field with Parameters

Parameters tmp like sy-datum obligatory.

ABAP Exercise

select-options

Complex Selection (Select-options)

Tables spfli.- Select options carrid for spfli-car

rid.START-OF-SELECTION.

Select * From spfli Where carrid in carrid. . . .Endselect.

Select-Options

“ต้�องการให้�แสดงข้�อมู�ล customers ข้องล�กค้�าที่��มู�ชื่��อ(ค้อล�มูน์� name ) ข้��น์ต้�น์ด�วยต้�ว ‘M’ และล�กค้�าที่��ชื่��อ ‘Smith’ และล�กค้�าที่��ชื่��ออย�"ระห้ว"าง ‘A’ ก�บ ‘John’ โดยใชื่�ค้%าส��ง SELECT”

*Select from customers 22( ‘ % ’ ) 22( = ‘’) 2( ‘ ’ ‘ John’).

Select-Options

Tables customers.Select-options sname for customers-name.START-OF-SELECTION.Select * from customers Where name in sname.

Internal Structure of Select-options

sname

Sign Option Low High

Internal Structure of Select-options Field Value . Sign I = Include E = Exclude Option BT = Between CP = Contains Pattern EQ = Equal GT = Greater Than LT = Less Than GE = Grater Than or Equal LE = Less Than or Equal NE = Not Equal NB = Not Between

Internal Structure of Select-options

snameSign Option Low High

I CP M* I EQ Smith I BT A John

SELECT-OPTIONS

Sign Option Low High

I CP M* I EQ Smith I BT A John

sname

Select * from customers where name in sname.

*Select from customers 22( ‘ % ’ ) 22( = ‘ ’ ) 2( ‘ ’ ‘ John’).

Transform

INITIALIZATION Event

Tables Customers.- -Select options sname for customers name.

Initialization. - sname sign = ‘I’. - sname option = ‘EQ’. - sname low = ‘Smith’. append sname.

- -Start of Selection. Select * from customers Where name in sname.

Select-options Options

Select-options sname for customers-name obligatory. Select-options sname for customers-name no-extension.

Select-options sname for customers-name no intervals.

Designing Selection Screen

Selection-screen begin of block test with frame Title text-001. . Selection-screen uline. Selection-screen skip 3. Selection-screen comment 3(10) text-001. Parameters month(2) type n. .Selection-screen end of block test.


selection-screen begin of line. selection-screen comment 1(7) text-001. selection-screen position 9. parameters month(2) type n. selection-screen comment 16(6) text-002. parameters year(4) type n.selection-screen end of line.


Selection-screen begin of block name1 with frame title text-001. Selection-screen begin of line. Parameters test1 radiobutton group test default ‘X’. Selection-screen comment 4(10) text-002. Selection-screen position 35. Parameters tcheck as checkbox. Selection-screen comment 37(15) text-003. Selection-screen end of line. Selection-screen begin of line. Parameters test2 radiobutton group test. Selection-screen comment 4(10) text-004. Selection-screen end of line.Selection-screen end of block name1.

ABAP Exercise

Checking User Input

Tables customers. Data pcode _len type i.

-Parameters pcode like customers postcode. - At selection screen.

pcode _len = strlen( pcode ). if pcode _len <> 5. message e000(38) with ‘Please enter postcode 5 characters’. endif.

- -Start of Selection. select * from customers where postcode = pcode. …

ABAP Exercise

ABAP Program Processing Steps

TABLES sflight.PARAMETERS nextday LIKE sy-datum.INITIALIZATION. nextday = sy-datum + 1.AT SELECTION-SCREEN . IF nextday < sy-datum. MESSAGE e000(38) WITH ‘Please enter date >= today’. ENDIF.START-OF-SELECTION. SELECT * FROM sflight WHERE ... fldate = nextday… …

ABAP Practice

abap event-driven programming &selection screen

Education

cursor field

frame title

basic list

set pf

detail list

list bufferstart

line field

block test