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Errorhandling
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08/01/2015 10:17:38
 
 
À
08/01/2015 10:09:26
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Allemagne
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows 8.1
Network:
SAMBA Server
Database:
Visual FoxPro
Application:
Desktop
Divers
Thread ID:
01613303
Message ID:
01613304
Vues:
90
J'aime (1)
>Hi all,
>
>I have a problem wit TRY CATCH errorhandling
>Example
>
>lomu = NEWOBJECT('mu')
>
>add_p(_SCREEN)
>
>lomu.add_x
>
>
>DEFINE CLASS mu AS CONTAINER
> PROCEDURE ERROR
>  LPARAMETERS;
>   tnError,;
>   tcMethod,;
>   tnLine,;
>   tvReturn
>
>  ?'Error event'
> ENDPROC &&mu.error
>
> PROCEDURE add_x
>  add_p(THIS)
> ENDPROC &&mu.add_x
>ENDDEFINE &&mu as session
>
>
>PROCEDURE add_p
> LPARAMETERS lomu
> TRY
>   ?lomu.NAME
>   lomu.ADDOBJECT('mux','xxr')
>
>   ?'not catchedd'
>
>  CATCH TO loException
>   ?'catchedd'
>  FINALLY
>*
> ENDTRY
>ENDPROC &&addp
>
>
>As you can see the call for the object will not be catched by TRY CATCH
>
>if there is no ERROR event then it is catched
>
>Any idea how catch the error? This is a example for my factory and it fails to catch the problems ...
>
>Thanks
>
>Lutz


help says

For errors that occur in an object's method code, the order of priority for error handlers is summarized as follows:

- Immediate TRY...CATCH, if it exists, in the same method that the error occurs. This applies also to external procedures that a method calls.

- Error event, if it exists, for the object.

- TRY...CATCH at the next level up in the calling chain or in a higher-level method.

- ON ERROR routine, if it exists.


ps- past participle of catch is caught
Gregory
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