On Error Run Function Vba
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only https://msdn.microsoft.com/en-us/library/office/ff193267.aspx takes a minute: Sign up VBA Excel Error Handling - especially in functions - Professional Excel Development Style up vote 5 down vote favorite 4 I got the book "Professional Excel Development" by Rob Bovey and it is opening up my eyes. I am refitting my code with error handling. However, there is a lot I don't understand. I especially http://stackoverflow.com/questions/19042604/vba-excel-error-handling-especially-in-functions-professional-excel-developm need to know how to correctly use it in functions. I use Bovey's rethrow version of the error handler (at bottom). When I started, I was using the basic boolean (non-rethrow) method and turned my subroutines into boolean functions. (P.S. I am switching back to the boolean method based on the answer.) I need guidance on how to fit functions into this scheme. I want them to return their real values (a string or double, e.g., or -1 if they fail in some cases) so I can nest them in other functions and not just return an error handling boolean. This is what a typical subroutine call to bDrawCellBorders(myWS) would look like within an entry point. Sub calls seem to be working well. (I.e. it is a subroutine that was turned into a function only so it can return a boolean to the error handling scheme.) Sub UpdateMe() ' Entry Point Const sSOURCE As String = "UpdateMe()" On Error GoTo ErrorHandler Set myWS = ActiveCell.Worksheet Set myRange = ActiveCell myWS.Unprotect ' lots of code If Not bDrawCellBorders(myWS) Then ERR.Raise glHANDLED_ERRO
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the http://stackoverflow.com/questions/23550468/vba-on-error-exit-calling-function workings and policies of this site About Us Learn more about Stack http://www.cpearson.com/excel/errorhandling.htm Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join on error them; it only takes a minute: Sign up VBA On Error Exit Calling Function up vote 0 down vote favorite 1 I have a simple excel function that connects to a db and retrieves some data and populates a worksheet. The function calls another function to make the db connection and return the query results. How do I exit the on error run calling function if there is an error connecting to the database? This is what my function looks like that connects to the DB. If there is an error connecting to the DB, the messagebox is displayed but then processing resumes in the calling function and then I get an ugly "END or DEBUG" message box...which I am trying to avoid. Public Function QueryDB(sQuery As String) On Error GoTo ErrorHandler ... Connect to database and get data ErrorHandler: ... Display a messagebox telling the user there is an error 'Resume Next Exit Function End Function excel vba excel-vba error-handling share|improve this question asked May 8 '14 at 19:05 mack 53621730 possible duplicate of Function always returns False. Why? –enderland May 8 '14 at 21:56 This was asked earlier today - stackoverflow.com/q/23544530/1048539 –enderland May 8 '14 at 21:56 Thanks, enderland, I'll take a look at that question. –mack May 9 '14 at 18:24 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote Public Function QueryDB(sQuery As St
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 Property, or just End. The On Error Statement The heart of error handling in VBA is the On Error state