Error Handling

[Chris]

I have some code in my page error and application error event which handles
unhandled errors. This may seem a REALLY stupid question but if I have this
code why do I need to use try catch blocks. If there is an error I want my
page to stop executing and log/email the error. Regards, Chris.

 

[Mark Fitzpatrick]

Because the try/catch blocks can let you inform your user with a relevant
error message. There are lots of times when you want more control and trap
specific problems. For example, I'm reading nodes in an XML document and,
for some reason, one of the nodes contains data that is the wrong type for
that node. If the conversion is in a try/catch block, I can catch the error
and continue processing. I use this method a lot when reading rows from
things like excel spreadsheets so I can disregard the row that had an errant
column but continue processing the spreadsheet overall.

 

[Mark Rae]

If there is an error I want my page to stop executing and log/email the
error.

But that won't be much use to your unfortunate users - all they will see is
that your site has crashed...