How To Use On Error Goto In Vbscript
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Vbscript On Error Exit
Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like error handling in vbscript tutorial you, helping each other. Join them; it only takes a minute: Sign up Error in On Error statement up vote 2 down vote favorite I am totally not a VBScript developer. But as it usually happens I
Vbscript Error Handling Best Practices
have to write a small script to check something. It opens Excel, writes something to it and closes it. But that's not the point. The point is that I cannot manage to write code for error handling. This script: Sub Work() On Error GoTo ErrMyErrorHandler Dim objExcelApp Dim wb Dim ws Set objExcelApp = CreateObject("Excel.Application") Set wb = objExcelApp.Workbooks.Add(True) Set ws = wb.Sheets(1) ws.Cells(1,1).Value = "Hello" ws.Cells(1,2).Value = "World" wb.SaveAs("c:\test.xls") objExcelApp.Quit() Exit Sub ErrMyErrorHandler: MsgBox Err.Description, on error resume next vbscript w3schools vbExclamation + vbOKCancel, "Error: " & CStr(Err.Number) End Sub Work() gives this error: Line 2 is the line with the On Error statement. What am I doing wrong? Thank you. vbscript share|improve this question asked Jun 27 '11 at 7:45 Grigory 45911024 add a comment| 3 Answers 3 active oldest votes up vote 3 down vote accepted looks like you can not point custom label to error handler in VB Script. You can only use on error goto 0 '(raises exceptions) on error resume next '(ignores exceptions) if you use the second syntax, you can catch occruing exceptions via Err global variable: if Err.Number <> 0 then MsgBox "Exception occured: " & Err.Decscription share|improve this answer edited Jun 27 '11 at 8:43 answered Jun 27 '11 at 7:48 heximal 7,47022149 add a comment| up vote 3 down vote Heximal is correct that VBScript does not allow custom labels for error handlers. Using your example, you'd really be trying to do something like this. Sub Work On Error Resume Next Dim objExcelApp Dim wb Dim ws Set objExcelApp = CreateObject("Excel.Application") Set wb = objExcelApp.Workbooks.Add(True) Set ws = wb.Sheets(1) ws.Cells(1,1).Value = "Hello" ws.Cells(1,2).Value = "World" wb.SaveAs("c:\test.xls") objExcelApp.Quit() If Err.Number <> 0 Then ErrMyErrorHandler End Sub Sub ErrMyErrorHandler MsgBox Err.Description, vbExclamation + vbOKCancel, "Error: " & CStr(Err.Number) End Sub Work() But you should really understand that thi
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Vbscript Error Handling Line Number
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Vbscript Error Codes
1 second. ActiveX Data Objects (ADO) Error Handling Handling Errors In Other Languages Handling Errors In Other Languages Handling Errors in vbscript on error goto sub VBScript Handling Errors in VBScript Handling Errors in VBScript Handling Errors in VBScript Handling Errors in Visual C++ Handline Errors in Visual J++ Handling Errors in JScript TOC Collapse the table of content http://stackoverflow.com/questions/6489941/error-in-on-error-statement Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. Handling Errors in VBScript There is little difference between the methods used in Visual Basic and those used with VBScript. The primary difference is that VBScript does not support the concept of error handling by continuing execution at a label. In other words, you cannot https://msdn.microsoft.com/en-us/library/ms675540(v=vs.85).aspx use On Error GoTo in VBScript. Instead, use On Error Resume Next and then check both Err.Number and the Count property of the Errors collection, as shown in the following example: Copy
Error Handling Example (VBScript)
<% Dim cnn1 Dim errLoop Dim strError On Error Resume Next ' Intentionally trigger an error. Set cnn1 = Server.CreateObject("ADODB.Connection") cnn1.Open "nothing" If cnn1.Errors.Count > 0 Then ' Enumerate Errors collection and display ' properties of each Error object. For Each errLoop In cnn1.Errors strError = "Error #" & errLoop.Number & "" & _ " " & errLoop.Description & "
" & _ " (Source: " & errLoop.Source & ")" & "
" & _ " (SQL State: " & errLoop.SQLState & ")" & "
" & _ " (NativeError: " & errLoop.NativeError & ")" & "
" If errLoop.HelpFile = "" Then strError = strError & _ " No Help file available" & _ "
" Else strError = strError & _ " (HelpFile: " & errLoop.HelpFile & ")" & "
" & _ " (HelpContext: " & errLoop.HelpContext & ")" & _ "
" End If Response.Write("
" & strError & "
") Next Enda tutorial example on how to use 'On Error GoTo 0' to turn off the error handling flag in a procedure to catch the first runtime error. As you can see from the previous section, my last VBScript http://www.herongyang.com/VBScript/Error-Handling-On-Error-GoTo.html example reported the last runtime error, not the first one. If you want to http://www.tek-tips.com/viewthread.cfm?qid=698824 catch the first runtime error is a large section of code, you need to: Enter the "On Error Resume Next" statement in the main code to turn on the error handling flag for the main code. Put that section of code into a new subroutine procedure. Enter the "On Error Goto 0" statement in the new procedure to turn off on error the error handling flag for that procedure. Check the Err.Number property right after calling that procedure. Here is the modified VBScript example to catch the first runtime error in a section of code:
Run this modified example code in IE, you will get: There is no error at this time. Before statement: x = 1/0 A runtime error has occurred: Err.Number = 11 Err.Description = Division by zero Err.Source = Microsoft VBScript runtime error What heppened was: When the first runtime error occurred on statement, x = 1/0, in the CodeToBeMonitored() procedure, execution stopped for that procedure, because the error handling flag was turned off for that procedure. Execution control was transferred back to the main code with the runtime error. Back in the main code, the execution continued because the error handling flag was turned on for the main code. When CheckError() was called at the end, Err.Number is 11, indicating that th
Join INTELLIGENT WORK FORUMSFOR COMPUTER PROFESSIONALS Log In Come Join Us! Are you aComputer / IT professional?Join Tek-Tips Forums! Talk With Other Members Be Notified Of ResponsesTo Your Posts Keyword Search One-Click Access To YourFavorite Forums Automated SignaturesOn Your Posts Best Of All, It's Free! Join Us! *Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.Tek-Tips Posting Policies Jobs Jobs from Indeed What: Where: jobs by Link To This Forum! Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.Just copy and paste the BBCode HTML Markdown MediaWiki reStructuredText code below into your site. VBScript Forum at Tek-Tips HomeForumsProgrammersLanguagesVBScript Forum Error Handling - on error goto Label? thread329-698824 Forum Search FAQs Links MVPs Error Handling - on error goto Label? Error Handling - on error goto Label? MCubitt (Programmer) (OP) 5 Nov 03 03:52 Within VBS, is it possible to provide my own error handling, such:..on error goto myerrorhandle..quitmyerrorhandle:if Err.Number=3 thenecho "Oh no, not good"elseecho "Not so bad, but not great."end ifquit RE: Error Handling - on error goto Label? tsuji (TechnicalUser) 5 Nov 03 04:55 Hello MCubitt,Vbs does not support On Error Goto Label directive. Instead, it is not difficult to implement the functionality. Something like this illustrate the idea.set fso=createobject("scripting.filesystemobject")on error resume nextset f=fso.opentextfile("nonexisting.txt")errcode=err.numbererr.clearselect case errcodecase 53call errorhandle_53'case etc...case elsemsgbox err.number & vbcrlf & err.description'do something / call some routineend select'some other stuffon error goto 0'do some other stuffset f=nothingset fso=nothingsub errorhandle_53'file not foundmsgbox err.number & vbcrlf & err.description'do something usefulend sub RE: Error Handling - on error goto Label? PHV (MIS) 5 Nov 03 05:00 On VBS you can only use this syntax:On Error Resume NextOn Error GoTo 0The Err object is available:On Error Resume NextErr.Raise 3Msg="Error# " & CStr(Err.Number) & " " & Err.Description _& " from " & Err.SourceWScript.Echo MsgErr.Clear Hope This HelpPH. Red Flag This Post Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting