ON ERROR GOTO in an Action Script Bug?

[John De Jong, Jr.]

Is this a bug?? I have a Action Script which includes inline Xbasic code. The Xbasic code includes ON ERROR GOTO for trapping run-time errors. The basic format for the code is taken right out of the book. In short the routine previews a report. The name of the report is taken from the variable RPT_NAM which has been load earlier. If the report is not found or the variable is blank, the error routine is invoked.

ON ERROR GOTO PREVIEW_ERR
:REPORT.PREVIEW(RPT_NAM)
END

[John De Jong, Jr.]

RE: ON ERROR GOTO in an Action Script Bug?

What did I do wrong?? Reposting the code from my first post. Hope it displays the way I intended. Sorry

ON ERROR GOTO PREVIEW_ERR
:REPORT.PREVIEW(RPT_NAM)
END

[csda1]

RE: ON ERROR GOTO in an Action Script Bug?

John,

Don't use Onerror in an inline basic of an action code. The action code has it's own Onerror trapping. Better to create it directly in xbasic (use convert ot xbasic) and eliminate any Inline script code at the top and bottom.

Regards,

Ira J. Perlow
Computer Systems Design & Associates
[email protected]

[John De Jong, Jr.]

RE: ON ERROR GOTO in an Action Script Bug?

The only reason I am posting one last message to this thread is to save someone else down the road the trouble of getting into the trap I found myself in.

As suggested, I converted the Action Script to inline Xbasic and removed the Action Script error handling code in the Xbasic. I was still not able to achieve what I was trying to do.

After more tinkering and experimenting the light came on (actually I proved it to myself). ON ERROR GOTO applies to the entire script, not a block of code. Some languages support error handling for separate lines or blocks of code and I made the assumption (and we all know assuming is dangerous) this was true in Xbasic. I was under the impression that the �END� statement as shown in the reference manual�s example was tied to the �ON ERROR GOTO� statement (such as END IF, END FUNCTION, etc.). The code replacing " �put Xbasic code here" was the block of code that would invoke error handling for a run-time error and error handling was terminated by the �END� statement with the script continuing to execute. I now know the �END� statement in the example is for the entire script, not ON ERROR GOTO.

When I finally figured this out I again re-read the section for ON ERROR GOTO and realized that I should have picked up on this tidbit, but missed it every time I read the section. Maybe it is just me, but I think the ON ERROR GOTO text could be a bit more explicit, but at the same time, I won�t get screwed up by error handling again.

So once again, after spending a great deal if time tinkering, I have been educated. I think I have also learned it is best to �think stupid� when working in Xbasic - forget my years of experience in programming - it just gets me in trouble.