Overflow Exception that I can't catch...

Question

The problem is:
I have a DataField, mapped type :DecimalNullable
the input mask is set to Template ( #,##0;;;;)
Because it is Template I can't validate on keystroke and
I can't set the max characters in the properties sheet.
This works great until, Someone enters over 28 characters into the field.
It then displays the errors:
USER ERROR: Operation caused arithmetic overflow
Class: qqsp_ArithmeticException
Error #: [301, 7]
Deteced at: DecimalData.SetScale at 1
ErrorTime: Thu Jan 27 15:50:48
Exception occurred (locally) on partition
"PurolatorApplications_CL0_Client" ,(partitionId =
DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7, TASKiD =
[DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7.492] in application
"FTLaunch_c10",pid 279 on node W5300109 in environment centrale
This is the first bit of code that executes when I leave the field and the
value has changed:
when <est_daily_rev_amt>.aftervaluechange do
Begin
sys_upd_usr_nam = aUserProfileBO.user_nam;
aCPVDetailItem.SetState(base_detailItem.CHANGED_STATE);
Exception
when ex:ArithmeticException Do
Task.ErrMgr.Clear();
Window.MessageDialog(
messageText='Revenue amount can not exceed 100,000,000',
MessageType=MT_WARNING);
Self.Window.PurgeEvents();
End;
This is what I do:
I put a debugging stop on the "when line" and the "Exception line"
I also set the debugger to stop on all exceptions and posts.
It never reaches the above code!?
Is this a forte bug?
I need the template and I need it to be a decimalnullable.
Is there any suggestions for where else I may catch this Exception???
Thanks in advance
Regards,
Dave Campbell
Consultant,
Caro Systems Inc.
Mailto:Dave.CampbellCaroSys.com

Answer 1

Hi Dave,
did you try this:
event loop
Begin
when ..... do
when <est_daily_rev_amt>.aftervaluechange do
when ..... do
exception
when ex:ArithmeticException Do
End;
end loop;
As far as I remember it matters where you put Begin
inside an event loop. This way you will catch the
exception without dropping off the loop. If the value
is O.K. the aftervaluechanged event will be executed.
Hope that helps!
Rumen
Thanks Zenon,
You mean... that without the aftervaluechange event,
I could catch
this?
Because by no means is my exception block anchored to
that event.
I am looking for advice of where I could put this
exception block...if
there
is another possible place at all.
Thanks.
Dave-----Original Message-----
Hi Dave,
You have no chance to catch this exception in
aftervaluechange block.
This event is triggered if the value in DataField is
OK.
You get only Arithmetic exception without the
aftervaluechange event if
the
length of the decimal is greater as 28.
Regards
Zenon Adamek
Forte Developer-----Original Message-----
The problem is:
I have a DataField, mapped >type :DecimalNullable
the input mask is set to Template ( #,##0;;;;)
Because it is Template I can't validate on
keystroke and
I can't set the max characters in the >propertiessheet.
This works great until, Someone enters over >28characters into the
field.
It then displays the errors:
USER ERROR: Operation caused arithmetic >overflow
Class: qqsp_ArithmeticException
Error #: [301, 7]
Deteced at: DecimalData.SetScale at 1
ErrorTime: Thu Jan 27 15:50:48
Exception occurred (locally) on partition
"PurolatorApplications_CL0_Client" ,(partitionId =
DEB96B60-AA27-11D1-82A8->23E82A0FAA77:0X6f98:0x7,TASKiD = >
[DEB96B60-AA27-11D1-82A8->23E82A0FAA77:0X6f98:0x7.492]
in
application
"FTLaunch_c10",pid 279 on node W5300109 in
environment centrale
This is the first bit of code that executes >when Ileave the field
and the
value has changed:
when <est_daily_rev_amt>.aftervaluechange do
Begin
sys_upd_usr_nam = >aUserProfileBO.user_nam;
aCPVDetailItem.SetState(base_detailItem.CHANGED_STATE);
Exceptionwhen ex:ArithmeticException Do
Task.ErrMgr.Clear();
Window.MessageDialog(
messageText='Revenue amount >can not exceed
100,000,000',
MessageType=MT_WARNING);
Self.Window.PurgeEvents();
End;
This is what I do:
I put a debugging stop on the "when line" and >the"Exception line"
I also set the debugger to stop on all >exceptionsand posts.
It never reaches the above code!?
Is this a forte bug?
I need the template and I need it to be a
decimalnullable.
Is there any suggestions for where else I may >catchthis
Exception???
Thanks in advance__________________________________________________
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