exercise unit object value help

8/13/2019 Exercise Unit Object Value Help

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Web Dynpro for ABAP

Exercise Unit: Using Object Value Help. Estimated Time: 35 minutes

NOTES:

If you wish to find out more about any field, first select that field and then hit F1.

Logon to the !" system and start !#!" $or%bench &E'(). Logon data is *ro+ided by your

instructor. a+e all your obects as local obects &*ac%age name -T").

PURPOSE:

!t the end of this Tutorial you will be able to

/nderstand how larger $eb 0yn*ro *roects can be structured with se+eral $eb 0yn*rocom*onents

#e able to include a reusable $eb 0yn*ro com*onent into another $eb 0yn*ro com*onent

now how methods of an used $eb 0yn*ro2s Interface ontroller is called

PREREQUISITES:

Logon to the !" system and start !#!" $or%bench &E'(). Logon data is *ro+ided by your instructor.

PROCEDURE:

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Create the Web Dynpro Component !""!#$%U&!HE'%

STEPS:

1. tart the !#!" $or%bench &se80) and create the new $eb 0yn*ro com*onent 44((I6"/T7EL"

(. De)ine a Component Usage o) the *tan+ar+ Web Dynpro Component

WD!OV*

0efine the com*onent usage of the tandard $089 $eb 0yn*ro com*onent.

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,. De)ine an -ssistance Class )or the Component an+ maintain text element

reate an !ssistance lass for maintaining the te;t symboles for the a**lication.

0ouble lic% on the !ssistance lass name and from the enu Te;t Elements to created or edit te;telements.

reate the following Te;t Elements in the assistance class created.

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. Create /-#$ Vie0

reate a iew in the $eb 0yn*ro com*onent with the name !I6.

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. Create context *2'#3H& o) the /-#$ Vie0

reate a node with the FLI


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4. #nstatiate the Usage o) the component WD5!OV* in the Vie0 Controller

an+ the Win+o0 Controller


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1. Create /-#$ Vie0 'ayout

In the layout of +iew !I6 IEW create a T8!? called T8!?7EL". Enter @elect the FlightsA in the !"TI96*ro*erty of CAPTION1 of T8!? T8!?7EL".

Inside TRAY_HELP create labels and in*ut fields for the two attributes CARRID and CONNID of conte;t nodeNODE_FLIGHT.

7int: /se function Create Container Form out of the conte;t menu of T8!?7EL".

(. Create metho+ O$!OV* on e6ent OV*


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Ta%e FB hel* on the e+ent colmn and e+ent O!" needs to be selected.


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data: lsearchin*ut ty*e tstruin*ut,

lselectlist ty*e table of tstrulist,

lte;t ty*e wdrname+alue,

llabelte;ts ty*e wdrname+aluelist,

lcolumnte;ts ty*e wdrname+aluelist,

lwindowtitle ty*e string,

lgrou*header ty*e string,

ltableheader ty*e string,

lselo*t ty*e ba*isfldra,

lselo*ttab ty*e table of ba*isfldra,

lflightlist ty*e table of ba*isfldat,

lba*ireturn ty*e table of ba*iretD,

waselectlist ty*e tstrulist,

waflightlist ty*e ba*isfldat,

la*i ty*e ref to ifwd+iewcontroller,

lmsgmanager ty*e ref to ifwdmessagemanager,

waba*ireturn ty*e ba*iretD,

lmsgte;t ty*e string,

lflights ty*e table of sflight.

field>symbols: uery*arams= ty*e tstruin*ut,

selection= ty*e tstrulist.

case o+scallbac%obect>=*haseindicator.



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when ifwdo+sG=co*hase(. Hconfiguration *hase, may be omitted

C in this *hase you ha+e the *ossibility to define the te;ts,

C if you do not want to use the defaults &00I>te;ts)

lte;t>name G E!8L?. Hmust match a field name of search

lte;t>+alue G wdassist>=ifwdcom*onentassistanceJgette;t& %ey G ((1 ).

insert lte;t into table llabelte;ts.

lte;t>name G L!TE. Hmust match a field name of search

lte;t>+alue G wdassist>=ifwdcom*onentassistanceJgette;t& %ey G ((D ).

insert lte;t into table llabelte;ts.

C lte;t>name G K9L/61K. Hmust match a field in list structure

C lte;t>+alue G K?TETDK. Hwdassist>=gette;t& K((DK ).

C insert lte;t into table lcolumnte;ts.

lwindowtitle G wdassist>=ifwdcom*onentassistanceJgette;t& %ey G ((3 ).

lgrou*header G wdassist>=ifwdcom*onentassistanceJgette;t& %ey G ((B ).

ltableheader G wdassist>=ifwdcom*onentassistanceJgette;t& %ey G ((5 ).

C lwindowtitle G wdassist>=gette;t& K((3K ).

C lgrou*header G wdassist>=gette;t& K((BK ).

C ltableheader G wdassist>=gette;t& K((5K ).

o+scallbac%obect>=setconfiguration&

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labelte;ts G llabelte;ts

columnte;ts G lcolumnte;ts

grou*header G lgrou*header

windowtitle G lwindowtitle

tableheader G ltableheader

colcount G D

rowcount G D( ).

when ifwdo+sG=co*hase1. Hset search structure and defaults

C In this *hase you can set the structure and default +alues

C of the search structure. If this *hase is omitted, the search

C fields will not be dis*layed, but the selection table is

C dis*layed directly.

C 8ead +alues of the original conte;t &not necessary, but you

C may set these as the defaults). ! reference to the conte;t

C element is a+ailable in the callbac% obect.

o+scallbac%obect>=conte;telement>=getstaticattributes&

im*orting staticattributes G lsearchin*ut ).

C *ass the +alues to the 9 com*onent

o+scallbac%obect>=setin*utstructure&

in*ut G lsearchin*ut ).

when ifwdo+sG=co*haseD.

C If *hase 1 is im*lemented, use the field in*ut for the

C selection of the table.

C If *hase 1 is omitted, use +alues from your own conte;t.



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if o+scallbac%obect>=uery*arameters is not bound.

CCCCCCCC T909 e;ce*tion handling

endif.

assign o+scallbac%obect>=uery*arameters>=C

to uery*arams=.

if not uery*arams= is assigned.


endif.

C call business logic for a table of *ossible +alues

C lselectlist G MMM

lselo*t>low G uery*arams=>early.

lselo*t>high G uery*arams=>late.

lselo*t>o*tion G #T.

lselo*t>sign G I.

insert lselo*t into table lselo*ttab.

call function #!"IFLI=getmessagemanager& ).

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loo* at lba*ireturn into waba*ireturn where ty*e G E or ty*e G !.

lmsgte;t G waba*ireturn>message.

lmsgmanager>=re*orterrormessage& messagete;t G lmsgte;t ).

endloo*.

loo* at lflightlist into waflightlist.

waselectlist>carrid G waflightlist>airlineid.

waselectlist>connid G waflightlist>connectid.

waselectlist>fldate G waflightlist>flightdate.

insert waselectlist into table lselectlist.

endloo*.

o+scallbac%obect>=setout*uttable& out*ut G lselectlist ).

when ifwdo+sG=co*hase3.

C a**ly result

if o+scallbac%obect>=selection is not bound.


endif.

assign o+scallbac%obect>=selection>=C to selection=.

if selection= is assigned.

C o+scallbac%obect>=conte;telement>=setattribute&

C name G K9L/61K

C +alue G selection=>column1 ).

o+scallbac%obect>=conte;telement>=setstaticattributes&

staticattributes G selection= ).

endif.

endcase.

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,. -ttach the create+ OV* help to CO$$#D )iel+ in the Vie0 Context.

7ere we will try acti+ating the standard searchel* for !88I0 field in the IE$ conte;t and will learn to attachthe created 9 to the 966I0 field of the IE$ onte;t.



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Web Dynpro for ABAP

. Embe+ the /-#$ 6ie0 in the Win+o0


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9n *ressing FB hel* for CARRID , following hel* should be *ro+ided.

9n *ressing FB hel* on Flight 0ate, followinh should be the screen seuence.



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exercise unit object value help

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