On Error Goto In A Loop
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On Error Exit Loop
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1 I'm trying to cycle through a table in excel. The first three columns of this table have text headings, the rest of them have dates as headings. I want to assign those dates, sequentially, to a Date-type variable, and then perform some operations based on the date To do this I am using a foreach loop on myTable.ListColumns. Since the first three columns do not have date headers, I have resume vba tried to set the loop up so that, if there is an error assigning the header string to the date-type variable, the loop goes straight to the next column This seems to work for the first column. However, when the second column's header is 'assigned' to the date-type variable, the macro encounters an error even though it is within an error-handling block Dim myCol As ListColumn For Each myCol In myTable.ListColumns On Error GoTo NextCol Dim myDate As Date myDate = CDate(myCol.Name) On Error GoTo 0 'MORE CODE HERE NextCol: On Error GoTo 0 Next myCol To reiterate, the error is thrown on the second round of the loop, at the statement myDate = CDate(myCol.Name) Can anyone explain why the On Error statement stops working? excel vba excel-vba for-loop error-handling share|improve this question asked Aug 17 '12 at 1:52 Swiftslide 41751828 Rather than using an error as your control structure, maybe an IF with an IsDate function would be more suitable in this scenario? –ray Aug 17 '12 at 2:29 1 If you are "blindly" handling the error - rather than taking specific action on an error type - then you should just use an On Error Resume Next outside your loop. At the moment you are using er
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On Error Goto Line
Thanked 3 Times in 3 Posts resume loop at next loop if i get an error in the middle of a For...Next loop and vba on error exit sub go to an error handler, how can i skip what was left of that loop and resume the looping process at the top of the next loop? __________________ Access 2003 / XP Pro "We draw our own designs But http://stackoverflow.com/questions/11998836/excel-vba-on-error-goto-statement-not-working-inside-for-loop fortune has to make that frame." - N. Peart To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. wazz View Public Profile Visit wazz's homepage! Find More Posts by wazz 04-10-2009, 10:30 AM #2 boblarson Former Moderator Join Date: Jan 2001 Location: Oregon, USA Posts: 32,482 Thanks: 94 Thanked 1,781 Times in 1,565 Posts Re: resume loop at next loop http://www.access-programmers.co.uk/forums/showthread.php?t=169869 Quote: Originally Posted by wazz if i get an error in the middle of a For...Next loop and go to an error handler, how can i skip what was left of that loop and resume the looping process at the top of the next loop? Use an Exit FOR (I believe) __________________ Free tools, code and samples here: To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. boblarson View Public Profile Visit boblarson's homepage! Find More Posts by boblarson 04-10-2009, 10:34 AM #3 wazz Super Moderator Join Date: Jun 2004 Location: Vancouver, BC, Canada. Posts: 1,711 Thanks: 0 Thanked 3 Times in 3 Posts Re: resume loop at next loop i couldn't quite get that to go. but i'm going to try it again and see where it takes me. i did get it just now by putting a label just before the 'Next' line and used a GoTo 'label'. that works. tnx. __________________ Access 2003 / XP Pro "We draw our own designs But fortune has to make that frame." - N. Peart To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. wazz View Public Profile Visit wazz's homepage! Find More Posts by wazz 04-10-2009, 10:
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards https://msdn.microsoft.com/en-us/library/5hsw66as.aspx Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Samples Retired content We’re sorry. The content you requested has been removed. http://www.cpearson.com/excel/errorhandling.htm You’ll be auto redirected in 1 second. Visual Basic Language Reference Statements F-P Statements F-P Statements On Error Statement On Error Statement On Error Statement on error For Each...Next Statement For...Next Statement Function Statement Get Statement GoTo Statement If...Then...Else Statement Implements Statement Imports Statement (.NET Namespace and Type) Imports Statement (XML Namespace) Inherits Statement Interface Statement Mid Statement Module Statement Namespace Statement On Error Statement Operator Statement Option
three flavors: compiler errors such as undeclared variables that prevent your code from compiling; user data entry error such as a user entering a negative value where only a positive number is acceptable; and run time errors, that occur when VBA cannot correctly execute a program statement. We will concern ourselves here only with run time errors. Typical run time errors include attempting to access a non-existent worksheet or workbook, or attempting to divide by zero. The example code in this article will use the division by zero error (Error 11) when we want to deliberately raise an error. Your application should make as many checks as possible during initialization to ensure that run time errors do not occur later. In Excel, this includes ensuring that required workbooks and worksheets are present and that required names are defined. The more checking you do before the real work of your application begins, the more stable your application will be. It is far better to detect potential error situations when your application starts up before data is change than to wait until later to encounter an error situation. If you have no error handling code and a run time error occurs, VBA will display its standard run time error dialog box. While this may be acceptable, even desirable, in a development environment, it is not acceptable to the end user in a production environment. The goal of well designed error handling code is to anticipate potential errors, and correct them at run time or to terminate code execution in a controlled, graceful method. Your goal should be to prevent unhandled errors from arising. A note on terminology: Throughout this article, the term procedure should be taken to mean a Sub, Function, or Property procedure, and the term exit statement should be taken to mean Exit Sub, Exit Function, or Exit Property. The term end statement should be taken to mean End Sub , End Function, End Proper