On Local Error Resume Next Visual Basic 6
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Learn more about Stack Overflow the company Business Learn more about hiring developers or vba error handling in loop posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow vba error number Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Trap error or 'Resume Next' up vote 4 down https://msdn.microsoft.com/en-us/library/5hsw66as.aspx vote favorite I realise this is an older programming environment, but I have to clean up some VB6 code and I am finding that most of it uses: On Error Resume Next What is the general consensus about the use of On Error Resume Next? Surely, if there is an error, you would want the app to stop what it was doing, rollback any data changes, and http://stackoverflow.com/questions/2757477/trap-error-or-resume-next inform the user of the error, rather than just resuming. When is it a good idea to use On Error Resume Next? vb6 error-handling share|improve this question edited Apr 9 '12 at 18:59 Kate Gregory 16.1k74478 asked May 3 '10 at 10:46 CJ7 4,99232114220 See stackoverflow.com/questions/2062058/… –Daniel Daranas May 3 '10 at 10:50 3 Re-reading your question: "I am finding most of it uses..." is a bad sign. There is no good reason for the promiscuous use of On Error Resume Next. –Joel Goodwin May 3 '10 at 14:53 Q:When is it a good idea to use On Error Resume Next?A:when you are a vb6 geek. –Behrooz May 5 '10 at 11:39 add a comment| 3 Answers 3 active oldest votes up vote 4 down vote accepted I have found it useful in functions where an error would not warrant the user being interrupted with the issue. A good example is in the resize event. If you make a mistake or there's a problem in the resize event then you probably don't want the user to see this, as it probably wouldn't affect functionality. I would say in general, use it sparingly. share|improve this answer ans
Visual Basic 6 Code "On Error Resume Next" considered harmful By Palo Mraz, published on 21 Jan 2004 | Filed in http://www.developerfusion.com/code/4325/on-error-resume-next-considered-harmful/ Comments Visual Basic 6 SQL Server SQL As any seasoned VB programmer http://forums.codeguru.com/showthread.php?398008-Alternative-for-quot-On-Error-Resume-Next-quot-in-VB-NEt knows, the On Error Resume Next statement is used to check for errors the old (I might also say the C-style) way. When this statement is executed, any runtime error will be silently trapped and stored in the global Err object. We VB-ers typically use this on error construct to execute some "non-mission critical" code, where errors can be safely ignored. The canonical example I have seen many, many times, is the Form_Resize event handling procedure: Private Sub Form_Resize()
On Error Resume Next
' Resize the child controls on this form…
End Sub If this procedure did not on error goto contain the On Error Resume Next statement and a runtime error would occur, the application would be terminated with a nasty error message. (You do catch runtime errors in every event handling procedure, don't you?) In cases like this, the On Error Resume Next statement is quite handy, because it means less typing and more compact code. However, there are times, when this "handiness" might be very dangerous. The true danger of the On Error Resume Next statement lies in the fact that it makes it too easy to ignore the runtime errors. I have seen several cases, when ignoring runtime errors unintentionally was a recipe for disaster. Let me provide you with a real-life example taken from my own experience. Imagine a customer who had been using my application for several months and was happy with it. The application has a typical (somewhat boring:-) three-tier architecture (in the old days known as the Microsoft Windows DNA): VB6 front end; a typical forms-based application built with several 3rd party controls (GridEX,
Forum Visual Basic Programming Visual Basic .NET Alternative for "On Error Resume Next" in VB.NEt If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register or Login before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 14 of 14 Thread: Alternative for "On Error Resume Next" in VB.NEt Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode August 23rd, 2006,07:03 AM #1 rahulvasanth View Profile View Forum Posts Member Join Date Sep 2004 Posts 265 Alternative for "On Error Resume Next" in VB.NEt Hi I was using "On Error Resume Next" in VB to avoid certain errors. I want to know the equivalent of "On Error Resume Next" in VB.Net. Thanking in advance Reply With Quote August 23rd, 2006,07:30 AM #2 Kevin McFarlane View Profile View Forum Posts Member Join Date Jun 1999 Posts 153 Re: Alternative for "On Error Resume Next" in VB.NEt There isn't any. Kevin Reply With Quote August 23rd, 2006,07:35 AM #3 HanneSThEGreaT View Profile View Forum Posts CG Bouncer Power Poster Join Date Jul 2001 Location Sunny South Africa Posts 11,223 Re: Alternative for "On Error Resume Next" in VB.NEt Try and Catch blocks would be the more prefferred and appropriate way of Error handling Rahul. have a look at these FAQ's, Exception Handling is covered there as well : http://www.codeguru.com/forum/showthread.php?t=368148 More specifically, here's the link to the Exception Handling FAQ : http://www.codeguru.com/forum/showthread.php?t=383057 Hope it helps! All my Articles Hannes Reply With Quote August 23rd, 2006,07:37 AM #4 rahulvasanth View Profile View Forum Posts Member Join Date Sep 2004 Posts 265 Re: Alternative for "On Error Resume Next" in VB.NEt In VB.NEt How can I continue