if there is any error during the try part your code will jump directly
to the catch. from the catch you can throw an error to a higher error
routine. that is my understanding. this is the example out of the help
files.
TRY
[ tryCommands ]
[ CATCH [ TO VarName ] [ WHEN lExpression ]
[ catchCommands ] ]
[ THROW [ eUserExpression ] ]
[ EXIT ]
[ FINALLY
[ finallyCommands ] ]
ENDTRY
in the explination of the try catch the help file said this about the
throw: THROW [ eUserExpression ] ]
Creates a new Exception object to be caught by a CATCH statement. You
can call THROW from any code block in a TRY...CATCH...FINALLY structure.
However, you can use THROW anywhere in code where an error handler
exists to catch the exception. You cannot call THROW from the Command
window.
My question is to you have a higher try catch to, sorry for the pun,
catch the throw???
John Weller wrote:
> I'm using Craig Boyd's excellent code to send email using EsSmtp (thank you
> Craig). It is very clear but there is one area that confuses me slightly
> concerning the THROW command.
>
> The code is as follows (much abbreviated):
>
> TRY
> Set up parameters
> Call Send Mail method
> If Send Mail returns an error
> do case
> case errorno = nnn
> THROW 'Some Error Message'
> case etc
> endcase
> endif
>
> CATCH TO loError
> lcReturn = [Error: ] + STR(loError.ERRORNO) etc
>
> FINALLY
> Release object
>
> ENDTRY
>
> RETURN lcReturn
>
>>From what I can see if there is an error in the TRY block the method will
> return a string giving details of the error but I can't see where the
> messages generated by the THROW command will be displayed, if at all. As I
> understand it if the code executes perfectly but the mail is not sent,
> perhaps because the mailbox is busy, there will not be any indication. From
> my reading of 'What's New in VFP8' an Exception object will be created.
> Should I be testing for this object? If so, how?
>
> TIA
>
> John Weller
> 01380 723235
> 07976 393631
>
>
>
[excessive quoting removed by server]
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