What is the difference between CHAIN … ENDCHAIN and FIELD commands in Module Pool?
- 1 Answers
- 8211 Views
- I also Faced
- E-Mail Answers
Answer Posted / dtarunkmr
When You specify FIELD the module you specify is only processed for the field specified in the FIELD statement.If an error or warning message occurs during the module, the system sends the screen again, but
without processing the PBO module . The message is displayed, and only the field to which the check
was applied is ready for input.It is the FIELD statement that is responsible for making the field ready for input again. If you
use a message in a module that is not called from within a FIELD statement, the system displays the
message, but does not make the field ready for input again.
If you want to ensure that more than one field is ready for input following an error dialog, you must
list all of the relevant fields in the FIELD statement, and include both that and the MODULE
statement in a CHAIN … ENDCHAIN block.
n You can include individual fields in more than one CHAIN … ENDCHAIN block.
Many times if the user enters wrong value for one field, then you might want to give option to user to enter all the fields, which is not possible by using Field statement only. This functionality can be achieved by CHAIN – ENDCHAIN.
Syntax
Chain.
Field sflight-carrid value (‘LH’).
Field sflight-connid values (between ‘200’ and ‘500’).
Endchain.
Best Regards,
DTK
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is the difference between Master data and Transaction data?
There are 1000’s of IDOCs in your system and say you no longer need some of them? How will you get rid of those IDOCs?
What is the difference between Enhancement point and Enhancement Section?
What is the difference between Customizing and Workbench request?
What is the difference between INSTANCE methods and STATIC methods?
How is the table sorted when you do not specify field name and Ascending or Descending? On what criteria will the table be sorted? Do internal table have keys?
What is the difference between inner joins and outer joins?
What do you mean by Inbound and Outbound interface?
What is the difference between a value table and a check table?
How do you find Function Exit?
What is the difference between BDC and BAPI?
What is the difference between RFC and BAPI?
I am sending a mail from my mailbox to XYZ mailbox ,SAP PI picks up mail from xyz mail box with disclaimer - Hear my question is how to get the disclaimer?
What events do you know in Module Pool Programming?
What do you mean by table control???Where will we use this?
