Asp On Error Goto Line
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On Error Goto Line Vba
vote 5 down vote favorite I am working with old ASP code and I am not sure about semantics of on error goto 0 and error resume next construction. Can you recommend me some useful resources or enlight me directly? asp-classic vbscript share|improve this question edited Dec 1 '11 at 20:02 Joel Coehoorn 248k92440661 asked May 13 '09 at 8:12 Jakub Šturc 17.8k196996 add a comment| 5 Answers 5 active oldest votes on error goto line example up vote 4 down vote accepted On error resume next: If there is an exception in the program, just ignore it and continue to the next statement. Considered very bad and ugly, and rightly so in my opinion. It's like having a big: try { // your code } catch { // nothing! muhaha } in every method of your code (or worse, around the whole program). On error goto 0: disables any error handler that is defined in the current procedure. It's like having a big try-catch around your code, which gets disabled as soon as its hit this line. For more information, see the MSDN. share|improve this answer edited May 13 '09 at 8:32 answered May 13 '09 at 8:20 Razzie 19.6k104861 2 +1 Yes. I just discovered this: If you use On Error Goto 0 then every other On Error statement in the procedure becomes disabled. That was totally unexpected. I thought that the documentation was saying that only the last executed error handler is disabled. I expected that if the code reaches another error handler that it would be enabled again but it isn't. –authentictech May 9 '14 at 14:54 add a comment| up vote 4 down vote Have a look here: http://www.powerasp.com/content/new/on-error-resume-next.asp share|improve this answer
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Asp On Error Resume
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been removed. You’ll be auto redirected in 1 second. Language Reference Statements I-P I-P On Error Statement On Error Statement On Error Statement If...Then...Else Statement http://stackoverflow.com/questions/856710/what-does-the-on-error-goto-0-and-error-resume-next-in-old-asp-mean Implements Statement Input # Statement Kill Statement Let Statement Line Input # Statement Load Statement Lock, Unlock Statements LSet Statement Mid Statement MkDir Statement Name Statement On Error Statement On...GoSub, On...GoTo Statements Open Statement Option Base Statement Option Compare Statement Option Explicit Statement Option Private Statement Print # Statement https://msdn.microsoft.com/en-us/library/aa266173(v=vs.60).aspx Private Statement Property Get Statement Property Let Statement Property Set Statement Public Statement Put Statement TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. Visual Basic for Applications Reference Visual Studio 6.0 On Error Statement See Also Example Specifics Enables an error-handling routine and specifies the location of the routine within a procedure; can also be used to disable an error-handling routine. Syntax On Error GoTo line On Error Resume Next On Error GoTo 0 The On Error statement syntax can have any of the following forms: Statement Description On Error GoTo line Enables the error-handling routine that starts at line specified in the required line argument. The line argument is any line label or line number. If a run-time error occurs, control branches to line, making
help? Post your question and get tips & solutions from a community of 418,440 IT Pros & Developers. It's quick https://bytes.com/topic/asp-classic/answers/851418-script-error-goto-errhandler & easy. script for on error goto errhandler P: 83 MATTXtwo is't asp http://www.powerasp.net/content/new/on-error-resume-next.asp supported for on error goto error handler? if so can anybody give me some hint for it... i need to make my page get to other link if detecting an error Nov 5 '08 #1 Post Reply Share this Question 3 Replies Expert 100+ P: 979 DrBunchman Hi MATTXtwo, on error The first thing to do is to put the following line at the top of your page: Expand|Select|Wrap|Line Numbers <% OnErrorResumeNext %> This tells the interpreter to ignore any errors and carry on processing the script. The next thing you need is a bit of code to trap any errors which occur: Expand|Select|Wrap|Line Numbers <% IfNotErr.Number=0Then Response.WriteErr.Description Error.Clear EndIf %> You can put on error goto whatever you like in this second bit of code to handle the error as required. Hope this helps and let me know how you get on, Dr B Nov 5 '08 #2 reply P: 83 MATTXtwo Expand|Select|Wrap|Line Numbers <% OnErrorResumeNext %> Expand|Select|Wrap|Line Numbers <% IfNotErr.Number=0Then Response.WriteErr.Description Error.Clear EndIf %> Thanks DrB ... Can I do like this.. ON ERROR code top of page iif statement bottom of page? and can this code catch all error on pages? Nov 5 '08 #3 reply Expert 100+ P: 979 DrBunchman Yes, that's how it should work. Give it a go and let me know what happens. You should be able to force your page to error quite easily so you can test it. Dr B Nov 5 '08 #4 reply Message Cancel Changes Post your reply Join Now >> Sign in to post your reply or Sign up for a free account. Similar topics Help with On Error GoTo filtering out "#Error" Class returns 440 - automation error Error handlers and Exception handlers Error trapping ignored on second pass (DAO recordset duplicates error 3022) Error on: DoCmd
Forums Links DISCUSSIONARCHIVES DISCUSSIONARCHIVES2 DISCUSSIONARCHIVES3 BLOG We didn't realize the site was so popular. Other Stuff How To Use On Error Resume Next Often when using ASP or Active Server Pages with VBScript you will find it necessary to check for errors when you do certain things that may fail and then handle it accordingly. Things like opening a database connection or writing to a text file come to mind. Generally if an error is encountered in your .asp file, the processing of your script stops and an error message is returned to the browser. If you want to continue processing your page even if an error is encountered, include the following line at the beginning of your .asp file: <% On Error Resume Next %> That being said just ignoring errors in your code is not a very good idea. What you really want to do is handle the error in some way. The example below opens a database connection and shows you how to trap a potential error and do whatever you want because of it. In this case we are simply displaying the error. <% ConnectionString = "DBQ=c:\inetpub\wwwroot\mysite\data\mydatabase.mdb;Driver={Microsoft Access Driver (*.mdb)};" '*** This code checks the ConnectionString info you entered and reports back the error code if it is not ok Err.Clear On Error Resume Next Set ConnPasswords = Server.CreateObject("ADODB.Connection") ConnPasswords.Open ConnectionString If Err.Number <> 0 Then Response.Write (Err.Description& "
") Response.Write("This means there is most likely a problem with the" & vbCrLf) Response.Write("""ConnectionString"" info that you specified.
" & vbCrLf) Response.End End If On Error GoTo 0 %> We put the "On Error GoTo 0 at the end because that will essentially end the "on error resume next" That is something you want to do so any later errors in your application do not get ignored without you knowing about it. Below is another exampl