Asp Classic Error Resume Next
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Forums Links DISCUSSIONARCHIVES DISCUSSIONARCHIVES2 DISCUSSIONARCHIVES3 BLOG We didn't realize the site was so popular. Other Stuff How To Use On Error Resume classic asp on error goto Next Often when using ASP or Active Server Pages with VBScript you will find
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it necessary to check for errors when you do certain things that may fail and then handle it accordingly. Things classic asp error handling 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
Classic Asp On Error Resume Next Example
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 asp net on error resume next 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 example. In this example our application logs user info in a text file when they sign in to a site. We add "On Error Resume Next" here simply so no nasty error message come up if by chance write permissions to the text file do not exist. <% Set ObjMyFi
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To/FromCODEGuides ASP Classic To/From ASP Classic Study Test PRESTWOODCERTIFIED ASP Classic Study Test ASP Classic Store PRESTWOODSTORE Store Home Buy asp on error goto 0 ASP Classic Items Members Only MEMBERSONLY ASP Classic Member List Member Only KB Posts ASP Classic Content Stats Random Article Random MB Thread Random Tidbit Random CrossRef Code Prestwood eMagazine October Edition Subscribe http://www.powerasp.net/content/new/on-error-resume-next.asp now! It's Free! Enter your email: ► KB ► Website Scri... ► ASP Classic ► Language Basics Print This From the January2009 Issue of Prestwood eMag ASP Classic Language Basics:Using On Error Resume NextBy Mike Prestwood Posted 10 years ago on 11/15/2006 and updated 7/2/2008 Take Away: You can use "On Error Resume Next" to suppress errors and "On Error Goto 0" to stop https://www.prestwoodboards.com/ASPSuite/KB/Document_View.asp?QID=100411 suppressing errors. Tags: ASP , On Error Resume Next , trap errors , CDO , send email KB100411 ASP's ability to trap for errors is pretty weak compared to other languages. However, you can trap for errors, suppress errors, and stop suppressing errors. When an error is found, you can also handle it. Suppressing Errors To start trapping errors, add the following line:On Error Resume Next This will suppress all errors for the duration of the script. For example, normally the following code would cause the death of your code with a division by error message:Dim xx = 1/0 However, you can suppress the error as follows:On Error Resume NextDim xx = 1/0 The above code will cause NO error at all. Capture Error But Keep Going While trapping for errors, you can handle the error by inspecting the Err object. The following code snippet handles our division by zero error by displaying a message but the script keeps going:On Error Resume NextDim xx = 1/0If Err.Number <> 0 ThenResponse.Write "Error: " & Err.DescriptionEnd IfResponse.Write "Note, this line here still executes and prints this text." Stop Suppressing Errors After calling On Error Resume Next, you can stop suppre
an error occurs 'Do somethign that might cause an error If Err.number <> 0 Then ' check if any errors were raised and handle them 'Handle the http://www.dotnetdawgs.com/post/ASp-Classic-How-To-Use-On-Error-Resume-Next.aspx Error response.write(Err.Description) End If On Error GoTo 0 ' turn off resume next 5e4aaed3-49dd-4e0e-bb35-c74f4269a1da|0|.0 Tags: on error resume next, asp classic debugging ASP Classic E-mail | Kick it! | DZone it! | del.icio.us Permalink | Comments (0) | Post RSS Related posts.NET State DropDown 1: