When a user-defined function or a trigger is executed on a table
object, xRec and FIELDNO are set differently, depending on how the
function or trigger is executed. The following tables explain what
happens in the different scenarios.
User-Defined Function
The following table explains what happens to xRec and FIELDNO
when a user-defined function on a table object is called from
either external or internal C/AL code. External C/AL code means
that the calling code is in a different object. Internal C/AL code
means that the calling code is in the same object (another function
in the same object).
| Execution initiated by |
xRec value |
FIELDNO value |
|
External C/AL code
|
Empty
|
0
|
|
Internal C/AL code
|
Unchanged
|
Unchanged
|
Triggers
The following table explains what happens to xRec and FIELDNO
when a trigger is called from either external or internal C/AL
code. External C/AL code means that the calling code is in a
different object. Iinternal C/AL code means that the calling code
is in the same object (another function in the same object).
| Scenario |
xRec value |
FIELDNO Value |
|
VALIDATE trigger called by external C/AL code that calls the
VALIDATE function
|
Copy of Rec before assignment in VALIDATE trigger
|
Field number of field being validated
|
|
VALIDATE trigger called by internal C/AL code that calls the
VALIDATE function
|
Unchanged
|
Unchanged
|
|
Any table or function called by C/AL that initiates a call to a
trigger other than VALIDATE
|
Copy of Rec before trigger is executed
|
0
|
