What is the use of chain Endchain?
What is the use of chain Endchain?
CHAIN and ENDCHAIN define processing chain in SAP ABAP Dynpro Flow logic. User can execute FIELD and MODULE between CHAIN and ENDCHAIN. Also, the statements between CHAIN and ENDCHAIN form a processing chain which cannot be nested.
What is chain and Endchain in SAP?
The statements CHAIN and ENDCHAIN in the dynpro flow logic define processing chains. The statements FIELD and MODULE can be executed between CHAIN and ENDCHAIN. The statements between CHAIN and ENDCHAIN form a processing chain. Processing chains cannot be nested.
What is on chain request in SAP ABAP?
ON CHAIN-INPUT similar to ON INPUT. The ABAP/4 module is called if any one of the fields in the chain contains a value other than its initial value(blank or nulls). ON CHAIN-REQUEST. This condition functions just like ON REQUEST, but the ABAP/4 module is called if any one of the fields in the chain changes value.
What is PBO and PAI in SAP ABAP?
PBO (Process Before Output): A processing event which is called before the screen is displayed. Its tasks include the initialization of the screen fields and supply default data values for the screen. PAI (Process After Input): A processing event taking place after you leave a screen.
How do you use chain EndChain in module pool?
Chain-EndChain In Module Pool
- Go to SE38 , Provide Program name and click on Create Button.
- Provide the title description and choose Type M Program and click on Save Button.
- Declare some variables and tables statement in the program .
- Provide the Screen Number ‘0001’ and then click on the Tick button.
What is the use of at Exit command in ABAP?
EXIT statement is used to terminate an entire loop unconditionally and immediately. As soon as the EXIT statement is executed, the loop is terminated and the statements following the loop are processed.
What is search help in SAP ABAP?
Definition. Search helps are objects that you can use to assign input help (F4 Help) to screen fields. You can do this by creating a search help in the ABAP Dictionary and attaching it to the corresponding screen field. Use. The input help (F4 help) is a standard function of the SAP system.
Under which circumstances is module with the addition on chain input executed?
Under which circumstances is module with the addition ON CHAIN-INPUT executed? (Single selection) When exactly one field within the CHAIN has a value other than its initial value. When a new entry has been made for at least one field within the CHAIN. When a new entry has been made for all fields in the chain.
What is Sy Dynnr in SAP ABAP?
SYDYNNR is a standard DATA Element within the SAP ABAP dictionary and is associated with fields that store Purchasing Document information.
What is Menu Painter?
Menu Painter is a tool used to design the interface components. Status, Menu Bars, Menu Lists, F-key settings, Functions, and Titles are the components of Menu Painter.
What is at Exit command in module pool?
The MODULE AT EXIT-COMMAND statement is normally used to leave the current screen without the automatic input checks taking place. You should therefore program it to contain an appropriate variant of the LEAVE statement, to leave the current screen, the call chain, or the entire program, as appropriate.
What does the exit statement do?
EXIT statement is used to terminate an entire loop unconditionally and immediately. As soon as the EXIT statement is executed, the loop is terminated and the statements following the loop are processed. EXIT.
What is chain-endchain in SAP?
What is CHAIN-ENDCHAIN in SAP. CHAIN and ENDCHAIN define processing chain in SAP ABAP Dynpro Flow logic. User can execute FIELD and MODULE between CHAIN and ENDCHAIN. Also, the statements between CHAIN and ENDCHAIN form a processing chain which cannot be nested.
What is the purpose of endchain?
Chain …Endchain create a processing chain…which solve various purpose like: Suppose you validate some data, that if a validation is failed then a error message will be displayed and the corresponding field will be ready for input.
How do the additions on chain-input and Onchain-request work?
The additions ON CHAIN-INPUT and ON CHAIN-REQUEST work like the additions ON INPUT and ON REQUEST that you use for individual fields. The exception is that the module is called whenever at least one of the fields listed in a preceding FIELD statement within the chain meets the condition.
What happens when a module appears within a processing chain?
Whenever the MODULE statement appears within a processing chain, even if there is only one FIELD attached to it, all of the fields in the chain (not only the affected field) are made ready for input again, allowing the user to enter new values.