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Dialog screen field validation
Code to demonstrate screen validation for dialog programs. The following code should be inserted into
the PAI module.
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* Validate single field via module call
FIELD sc_field-ebeln
MODULE validate_screen_field "validation code performed in module
ON INPUT.
* Validate multiple fields via module call
CHAIN.
FIELD: sc_field-ebeln, sc_field-ebelp.
MODULE validate_screen_field. "validation code performed in module
ENDCHAIN.
* Validate field via table selection
FIELD sc_field-ebeln
SELECT *
FROM ekko
WHERE ebeln = sc_field-ebeln
INTO ekko
WHENEVER NOT FOUND SEND ERRORMESSAGE 001
WITH ' Document Number ’
ON INPUT.
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