Exception identifier

[John]

Hi all, I have a question about capturing exception details in C#.

Is it possible to query the exception and get an id related to what caused
the exception??

e.g

1 = Tried to enter a row into a database but there was a Primary Key
conflict

Currently I am doing something like this

catch(Exception ex){
if (ex.Message.ToS tring().ToLower ().IndexOf("pri mary key")>0){

But this looks decidely suspect so if anyone knows of a better way, I am all
ears ;)

Thanks
Mark

[MuZZy]

Re: Exception identifier

John wrote:[color=blue]
> Hi all, I have a question about capturing exception details in C#.
>
> Is it possible to query the exception and get an id related to what caused
> the exception??
>
> e.g
>
> 1 = Tried to enter a row into a database but there was a Primary Key
> conflict
>
> Currently I am doing something like this
>
> catch(Exception ex){
> if (ex.Message.ToS tring().ToLower ().IndexOf("pri mary key")>0){
>
> But this looks decidely suspect so if anyone knows of a better way, I am all
> ears ;)
>
> Thanks
> Mark
>[/color]

Define your own exception class derived from Exception like this:
class MyException: Exception
{
int ErrCode;
MyException(int err, string msg): base(msg)
{
ErrCode = err;
}
}

Something like that. And when you catch the exception, you know the err code and explanation.

catch (Exception ex)
{
if (ex is MyException)
if (((MyExcption)e x).ErrCode = 5)
{...do whatever...}
}

Hope it helps
Andrey

[Mattias Sjögren]

Re: Exception identifier

[color=blue]
>Is it possible to query the exception and get an id related to what caused
>the exception??[/color]

If its a SqlException you're catching, you can get plenty more
information from the Errors property (a collection of SqlError, which
have a numeric Number property).




Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[John]

Re: Exception identifier

Thanks, I'll take a look at these ideas
Regards
Mark
"Mattias Sjögren" <mattias.dont.w ant.spam@mvps.o rg> wrote in message
news:eYlW3xTFFH A.1396@tk2msftn gp13.phx.gbl...[color=blue]
>[color=green]
> >Is it possible to query the exception and get an id related to what[/color][/color]
caused[color=blue][color=green]
> >the exception??[/color]
>
> If its a SqlException you're catching, you can get plenty more
> information from the Errors property (a collection of SqlError, which
> have a numeric Number property).
>
>
>
>
> Mattias
>
> --
> Mattias Sjögren [MVP] mattias @ mvps.org
> http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
> Please reply only to the newsgroup.[/color]