About error handling in vb.net

[Tom]

Hi All :

I have some question about error handling :

Can I get some system varabile which can get current function name , also if
error occur, can I get some system varabile which show the error line
number ?

For example :

Function myFunction() as integer
5 try
6 a = sys.opening
7 catch (ex as excpeption)
8 debug.writeline system.function name ' return a string type and
value is "myFunction "
9 debug.writeline system.errorlin e ' return a integer type and value
is "6"
10 end catch
End Function


Thanks

[Herfried K. Wagner [MVP]]

Re: About error handling in vb.net

"Tom" <pclan@tomgroup .com> schrieb:[color=blue]
> Can I get some system varabile which can get current function name , also
> if
> error occur, can I get some system varabile which show the error line
> number ?[/color]

Line numbers: If you used line numbers, you can determine the line number
using 'Err.Erl'.

Method name: 'System.Reflect ion.MethodBase. GetCurrentMetho d().Name'.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>

[Tom]

Re: About error handling in vb.net

But it seem apply for private function
it return Run-time exception thrown : System.Argument Exception - Cannot
evaluate a security function
also Err.erl is 0.

Also can I also get current class / current module name ?

"Herfried K. Wagner [MVP]" <hirf-spam-me-here@gmx.at> ???
news:uST$HchUFH A.1152@tk2msftn gp13.phx.gbl ???...[color=blue]
> "Tom" <pclan@tomgroup .com> schrieb:[color=green]
> > Can I get some system varabile which can get current function name ,[/color][/color]
also[color=blue][color=green]
> > if
> > error occur, can I get some system varabile which show the error line
> > number ?[/color]
>
> Line numbers: If you used line numbers, you can determine the line number
> using 'Err.Erl'.
>
> Method name: 'System.Reflect ion.MethodBase. GetCurrentMetho d().Name'.
>
> --
> M S Herfried K. Wagner
> M V P <URL:http://dotnet.mvps.org/>
> V B <URL:http://classicvb.org/petition/>
>[/color]

[Chris Dunaway]

Re: About error handling in vb.net

Try printing out the stack trace of the exception. Maybe that will
have the data you need.

[Phill. W]

Re: About error handling in vb.net

"Tom" <pclan@tomgroup .com> wrote in message
news:ugkCscgUFH A.3280@TK2MSFTN GP09.phx.gbl...[color=blue]
> Can I get some system varabile which can get current function
> name? also if error occur, can I get some system varabile
> which show the error line number ?[/color]

Yes.

For function name (outside of an Exception Handler), use
[System.Reflecti on.MethodBase].GetCurrentMeth od.Name()

For Line numbers in an Exception Handler, examine the Stack
Trace of the Exception you caught, but /only/ if your program
(or whatever) was built in Debug Mode. When you rebuild in
Release Mode, the line numbers no longer appear.

Function myFunction() as integer
Dim a As ...
Try
a = sys.opening
Catch (ex as Exception)
MessageBox.Show ( ex.ToString() )
End Catch
End Function

HTH,
Phill W.