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Returns the error number for the error that triggered an ON ERROR routine.
ERROR(В ) |
Return Value
Numeric
Remarks
ERROR(В ) returns the number of the most recent error. An ON ERROR routine must be active for ERROR(В ) to return a value other than 0.
When an error is trapped during program execution, the error type can be returned by ERROR(В ) in an ON ERROR routine. The corresponding error message can be returned by MESSAGE(В ).
The value ERROR(В ) returns is reset by RETURN or RETRY.
Example
The following example demonstrates a simple error-handling routine that displays a message when an error occurs.
| В |  Copy Code |
|---|---|
CLEAR ON ERROR DO errhand WITH ERROR( ), MESSAGE( ) *** The next line generates an error - there is no BRWSE command BRWSE ON ERROR RETURN *** Error handler *** PROCEDURE errhand PARAMETER errnum,message ? Message ? 'Error number: '+ ALLTRIM(STR(Errnum)) RETURN | |