Hi, tell me abt creation of search helps in detail

Question

hi, tell me abt creation of search helps in detail

Answer 1

Hi
Search helps
Standard search help
Types of search helps
Concept of search help
Search Help Interface
Dialog behavior of search helps
Selection method for search helps
Performance of search helps
Attaching search helps
Hierarchy of search helps
Standard Search Help
The input help (F4 help) is a standard function of the R/3 System. It permits the user to display a list of possible values for a screen field. A value can be directly copied to an input field by list selection.
The fields having an input help are shown in the R/3 System by the input help key to the right of the field. This key appears as soon as the cursor is positioned on the corresponding screen field. The help can be started either by clicking on this screen element or with function key F4.
If the number of possible entries for a field is very large, you can limit the set of displayed values by entering further restrictions.
Further meaningful information about the displayed values is included in the display of possible entries, especially if the field requires that a formal key be entered.
TYPES OF SEARCH HELPS
Elementary search helps
Describe a search path. The elementary search help must define where the data of the hit list should be read from (selection method), how the exchange of values between the screen template and selection method is implemented (interface of the search help) and how the online input help should be defined (online behavior of the search help).
Collective search help
Combine several elementary search helps. A collective search help thus can offer several alternative search paths.
Context data: You first have to define the context data to be used in the input help process. The context contains the information obtained in previous dialog steps and the entries already made by the user in the current input mask. This information is normally used to restrict the possible values for the current input field.
Dialog behavior: It describes the order of the dialog windows to be displayed during the input help and what they should look like.
Data collection method: It defines where the values offered to the user for selection come from.
Return values: When a value is selected from the list of possible entries, it is stored in the search field. This often results in the contents of further screen fields, such as explanatory text, being updated. You therefore should define which values can be returned to the screen.
In addition to describing an input help, you must define the fields for which it should be used. This is part of the field definition (of the search fields).
In Release 4.0, the search help was introduced in the ABAP Dictionary as a new object type. A search help is an object that describes the input help process. The individual components of such a description can be defined with attributes of the search help.
Search helps are subject to the same rules concerning their maintenance, activation and transport as all other objects of the ABAP Dictionary.
Search helps provide greater flexibility and functionality for defining input helps than the matchcode and help view object types offered up to Release 3.x.
Search Help Interface
Search help interface determines how the exchange of values between the screen template and the selection method is implemented.
The search help interface defines the context data that can be used in the input help and the data that can be returned to the input mask. Analogously to the interface of a function module, the search help interface comprises interface parameters.
When you define an interface parameter of a search help, you must also define whether it should be used to copy data to the input help (IMPORT parameter) or whether it should be used to return data from the input help (EXPORT parameter). A parameter of a search help can also have both attributes at the same time.
The location from which the IMPORT parameters of a search help get their values and the screen fields in which the contents of the EXPORT parameters of the search help are returned are defined in the search help attachment. The search help itself should always be attached to an EXPORT parameter of the search help. If this parameter is also the IMPORT parameter, its contents are only used in the input help if it is a search string (that is, if it contains a ´*´ or a ´+´).
You must define the parameter types of a search help. You can do this by assigning them data elements.
Value Transport for Input Helps
NOTE:In the above example, screen fields A, B and C are linked with parameters of the search help. As a result, values can only be transported between the screen and the search help for these three fields. Existing contents of screen fields A and B can be used for selecting the hit list since they are linked with an import parameter of the search help. The values of parameters A and C can be returned to the screen from the hit list since these parameters are declared as export parameters of the search help.
creation of Elementary Search Help
Enter the search help name and click on create.
Choose elementary search help radio button option as the search help type.
Enter the search help parameters, the selection method and activate the search help.
Collective Search Help steps
Enter the search help name and click on create.
Choose Collective search help radio button option as the search help type.
Enter the search help parameters.
Note that there is no selection method to be entered for a collective search help.
Instead of the selection method, we enter the included
search helps for the collective search help.
We need to assign parameters for each of the included
search helps.
Complete the parameter assignment by clicking on the push button
Collective search help offers the user to obtain F4 help
using any of the included search helps.
Attaching a search help to a field
A search help can influence the behavior of a field when the input help is called. The search help must be assigned to the field in order to do this. You have the following options for this assignment:
Attach search help to a data element / table or structure field / screen field / check table.
Conventionally search helps are attached to table fields or data elements. We shall see the same.
Attaching a search help to a screen element
A search help can be directly assigned to a screen field in two ways.
The name of the search help must be entered in the Screen Painter in the Attributes for the field in the field Search help.
The name of the search help can be defined for selection screens in ABAP reports in the PARAMETERS or SELECT-OPTIONS statement directly following the supplement MATCHCODE OBJECT.
However, input help is only available for this particular screen.
In this case, the search help is only available for this screen.
OR by useing FM
refer this code
TYPES : BEGIN OF ST_OBJID_SH,
OTYPE TYPE HRP1000-OTYPE,
OBJID TYPE HRP1000-OBJID,
END OF ST_OBJID_SH.
DATA : IT_OBJID_SH TYPE STANDARD TABLE OF ST_OBJID_SH.
DATA : WA_OBJID_SH TYPE ST_OBJID_SH.
***********SELECTION SCREEN DESIGN***********************
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
*SELECT-OPTIONS : S_OTYPE FOR HRP1001-OTYPE NO INTERVALS .
SELECT-OPTIONS : S_OBJID FOR HRP1001-OBJID NO INTERVALS .
SELECT-OPTIONS : DATE FOR SY-DATUM NO-EXTENSION OBLIGATORY.
SELECTION-SCREEN END OF BLOCK B1.
**********END OF SELECTION SCREEN DESIGN*****************
*********VALIDATION FOR SCREEN FIELDS********************
AT SELECTION-SCREEN ON VALUE-REQUEST FOR S_OBJID-LOW.
IF S_OBJID IS NOT INITIAL.
SELECT OTYPE OBJID FROM HRP1000
INTO TABLE IT_OBJID_SH
WHERE OTYPE = 'D'.
IF SY-SUBRC EQ 0.
SEARCH HELP FOR QUALIFICATION.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
EXPORTING
DDIC_STRUCTURE = ' '
RETFIELD = 'OBJID'
PVALKEY = ' '
DYNPPROG = SY-REPID
DYNPNR = SY-DYNNR
DYNPROFIELD = 'S_OBJID'
STEPL = 0
WINDOW_TITLE =
VALUE = ' '
VALUE_ORG = 'S'
MULTIPLE_CHOICE = ' '
DISPLAY = ' '
CALLBACK_PROGRAM = ' '
CALLBACK_FORM = ' '
MARK_TAB =
IMPORTING
USER_RESET =
TABLES
VALUE_TAB = IT_OBJID_SH
FIELD_TAB =
RETURN_TAB = RETURN_TAB
DYNPFLD_MAPPING =
EXCEPTIONS
PARAMETER_ERROR = 1
NO_VALUES_FOUND = 2
OTHERS = 3
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.
Elementary search helps Describe a search path. The elementary search help must define where the data of the hit list should be read from (selection method), how the exchange of values between the screen template and selection method is implemented (interface of the search help) and how the online input help should be defined (online behavior of the search help).
Collective search help Combine several elementary search helps. A collective search help thus can offer several alternative search paths.
steps
Elementary Search Help
1) Goto SE11
Enter the search help name and click on create.
2)Choose elementary search help radio button option as the search help type.
3)Enter the search help parameters, the selection method and activate the search help.
Collective Search Help
1)Enter the search help name and click on create.
2)Choose Collective search help radio button option as the search help type.
3)Enter the search help parameters.
Note that there is no selection method to be entered for a collective search help.
4)Instead of the selection method, we enter the included
search helps for the collective search help.
5)We need to assign parameters for each of the included
search helps.
6)Complete the parameter assignment by clicking on the push button
7)Collective search help offers the user to obtain F4 help
using any of the included search helps.
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee2b446011d189700000e8322d00/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee5f446011d189700000e8322d00/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee86446011d189700000e8322d00/content.htm