Asp On Error Move 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 Next Often when using ASP or Active asp on error resume next Server Pages with VBScript you will find it necessary to check for errors when you
Classic Asp On Error Resume Next
do certain things that may fail and then handle it accordingly. Things like opening a database connection or writing to a text file classic asp on error resume next example 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
Movenext Asp
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 asp rs movenext 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 ObjMyFile = CreateObject("Scripting.FileSystemObject") Err.Clear On Error Resume Next LogFileName = "aspprotect.log" LogFileDirectory = "c:\somedirectory" 'Open Text File.. If doesn't exist create it and append to it .. If exists just append to it Set WriteMyData = ObjMyFile.OpenTextFile(LogFileDirectory & "\" & LogFileNam
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Error Handling. Err.Line weird behavior The SitePoint Forums have moved. You can now find them here. This forum is now closed to new posts, but you can browse existing content. You can find out more information about the move and how to open a new account (if necessary) here. If you get stuck you can get support by emailing forums@sitepoint.com If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register 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. SitePoint Sponsor User Tag List Results 1 to 5 of 5 Thread: ASP Error Handling. Err.Line weird behavior Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Jul 11, 2005,09:34 #1 sixside View Profile View Forum Posts SitePoint Member Join Date Feb 2005 Posts 23 Mentioned 0 Post(s) Tagged 0 Thread(s) ASP Error Handling. Err.Line weird behavior I am adding some error handling into a script and came across a very bizare behavior. Code: Dim strBody strBody = "" strBody = strBody & "Error at "&Time() &VBCRLF strBody = strBody & "Err.Line: " & Err.Line &VBCRLF strBody = strBody & "Err.Number: " & Err.Number &VBCRLF strBody = strBody & "Err.Description: " & Err.Description &VBCRLF strBody = strBody & "Err.Source: " & Err.Source &VBCRLF I then send the variable strBody in an email to myself. What is really weird is that the email comes back looking like this: Code: Error at 9:14:21 AM Err.Number: 438 Err.Description: Object doesn't support this property or method Err.Source: Microsoft VBScript runtime error Noice that the line Err.Line doesnt appear anywhere in the email!! Even if the syntax of Err.Line was wrong the text "Err.Line" should be in the email.. right!? Anyone know why this happens? And also how to get it to output the line number causing the error. Thanks Jul 12, 2005,12:18 #2 mikeistyke View Profile View Forum