Returning from a catch statement

[Guest]

Hi All

In VB6 I used to catch exceptions in a goto errtrap call then resume if I
could handle the problem and continue within the routine or function

I am not sure how to do this in VB 2005 from within a catch statement

Any ideas appreciated

 

[Carlos J. Quintero [VB MVP]]

You can´t do that in VB.NET, at least not directly, you have to use nested
Try/Catch blocks

--

Best regards,

Carlos J. Quintero

MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
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[Herfried K. Wagner [MVP]]

In VB6 I used to catch exceptions in a goto errtrap call then resume if I
could handle the problem and continue within the routine or function

I am not sure how to do this in VB 2005 from within a catch statement

You cannot exactly do the same without putting each statement into its
separate 'Try...Catch' block. Note that 'On Error GoTo...' is still
available in VB.NET.

 

[Jay B. Harlow [MVP - Outlook]]

Steve,
As Carlos suggests, you cannot do that.

The "best" you could do is to put a Try/Catch around each of the commands
you want retry and have the Catch block retry the Try Block. I find using
Goto in the Catch block the "easiest" way to "Retry", others have put the
entire Try/Catch in a loop...

BTW: I've heard all the arguments about how Goto is evil & should be
avoided, in this case the "Goto Retry" is more like a "Retry" statement. Yes
"goto retry" could be used for evil, however it can also be used for good...

Something like:

Try Retry:

'...something

Catch ex as FileNotFoundException

If MessageBox.Show("File does not exit!", _
Application.ProductName, _
MessageBoxButtons.RetryCancel, _
MessageBoxIcon.Question, _
MessageBoxDefaultButton.Button2) _
= DialogResult.Retry Then
GoTo retry
End If

End Try

Caution: With either the Goto Retry or a loop, be certain to allow your
users an Out, so you don't get into an endless loop.

Hope this helps
Jay


--
Hope this helps
Jay [MVP - Outlook]
..NET Application Architect, Enthusiast, & Evangelist
T.S. Bradley - http://www.tsbradley.net


| Hi All
|
| In VB6 I used to catch exceptions in a goto errtrap call then resume if I
| could handle the problem and continue within the routine or function
|
| I am not sure how to do this in VB 2005 from within a catch statement
|
| Any ideas appreciated
|
|
| --
| Regards
| Steve

 

[steve]

Hi Carlos, Jay, Herfried

Thank you all for your replies


Regards
Steve