Error Trap In Word Vba
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resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners word vba error handling ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 on error exit sub vba Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content you vba catch error requested has been removed. You’ll be auto redirected in 1 second. Visual Basic Language Reference Statements F-P Statements F-P Statements On Error Statement On vba clear error Error Statement On Error Statement 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
Vba Excel On Error Resume Next
Option Compare Statement Option Explicit Statement Option Infer Statement Option Strict Statement Property Statement TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. On Error Statement (Visual Basic) Visual Studio 2015 Other Versions Visual Studio 2013 Visual Studio 2012 Visual Studio 2010 Visual Studio 2008 Visual Studio 2005 Visual Studio .NET 2003 Enables an error-handling routine and specifies the location of the routine within a procedure; can also be used to disable an error-handling routine. Without an On Error statement, any run-time error that occurs is fatal: an error message is displayed, and execution stops.Whenever possible, we suggest you use structured exception handling in your code, rather than using unstructured exception handling and the On Error statement. For more information, see Try...Catch...Finally Sta
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,
Vba Errortrap
that occur when VBA cannot correctly execute a program statement. We will concern ourselves here vba error handling best practices only with run time errors. Typical run time errors include attempting to access a non-existent worksheet or workbook, or attempting to divide vba on error goto 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 https://msdn.microsoft.com/en-us/library/5hsw66as.aspx 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 http://www.cpearson.com/excel/errorhandling.htm 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 statement. This statement instructs VBA what to do when an run time error is encountered. The On Error statement takes three forms. On Error Goto 0 On Error Resume Next On Error Goto
United States Australia United Kingdom Japan Newsletters Forums Resource Library Tech Pro Free Trial Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out TechRepublic Search GO Topics: CXO Cloud http://www.techrepublic.com/blog/five-apps/five-tips-for-handling-errors-in-vba/ Big Data Security Innovation Software Data Centers Networking Startups Tech & Work All Topics Sections: Photos Videos All Writers Newsletters Forums Resource Library Tech Pro Free Trial Editions: US United States Australia United Kingdom Japan http://gregmaxey.mvps.org/word_tip_pages/error_handling_101.html Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out Software Five tips for handling errors in VBA Effective error handling can mean the difference between a seamless, user-friendly experience vba error and a problem-plagued application. These best practices will help ensure your apps run as intended, without a hitch. By Susan Harkins | in Five Apps, October 9, 2010, 1:15 AM PST RSS Comments Facebook Linkedin Twitter More Email Print Reddit Delicious Digg Pinterest Stumbleupon Google Plus A professional application always includes adequate error-handling routines to trap unexpected errors. Sometimes, the right handling means the user never knows the vba error handling error occurred. At the very least, error-handling routines should address the problem, share adequate information on what the user should do next, and exit the program (if absolutely necessary) gracefully. You put a lot of effort into writing the procedures that run your custom applications. Why let a runtime error ruin it all? By employing a few best practices, you can improve error handling. 1: Verify and configure error settings Before you do anything, check the error-trapping settings. VBA, via the Visual Basic Editor (VBE), is flexible and allows you to determine how it responds to errors. To access these settings (shown in Figure A), in the VBE, choose Options from the Tools menu, and click the General tab: Break On All Errors: Stops on every error, even errors following a Resume Next statement. Break On Unhandled Errors: Stops for unhandled errors, but stops on the line calling the class (in class modules) rather than the line with the error, which can be problematic during debugging. Break In Class Modules: Stops at the actual error (line of code), but doesn't work as expected with Err.Raise, which generates an error of its own. Figure A Choose the most appropriate error-handling setting. Well-informed users can cha
Maxey) DISCLAIMER/TERMS OF USE The information, illustrations and code contained in my "Microsoft Word Tips" are provided free and without risk or obligation. However, the work is mine. If you use it for commercial purposes or benefit from my efforts through income earned or time saved then a donation, however small, will help to ensure the continued availability of this resource. If you would like to donate, please use the appropriate donate button to access PayPal. Thank you! This Microsoft Word Tips & Microsoft Word Help page a basic introduction to error handling and gives you some examples of error handling methods. A more detailed discussion of the material can be found in the VBA Help file under the topics "On Error Statement" and "Resume Statement." Why use error handling? VBA help puts it like this: "If you don't use and On Error Statement, any run-time error that occurs is fatal, that is, an error message is displayed and execution stops." What is a run-time error? A run-time error is an error that occurs when code is running. A run-time error results when a code statement attempts an invalid operation. There are lots of invalid operations. For a list of things that can cause a run-time error see: "Trappable Errors" in VBA Help. Using the following example macros you can produce some rather obvious run-time errors and then use On Error and Resume statements to illustrate some of the error handling methods. To use these examples, start with a new blank document and copy the example macros to the document VBA project. Or download the demonstration file using the link a the end of this page. See: Installing Macros for instructions on how to set up and use the macros provided in this Microsoft Word Help & Microsoft Word Tips page. VBA Script: Copy to clipboard Option Explicit 'Example 1 Sub BasicA() Dim i As Integer ActiveDocument.Variables("Test2").Value = "Testing" For i = 1 To 3 ActiveDocument.Variables("Test" & i).Delete Next lbl_Exit: Exit Sub End Sub 'Example 2 Sub BasicB() Dim i As Integer ActiveDocument.Variables("Test2").Value = "Testing" For i = 1 To 3 'Enable error handler On Error Resume Next ActiveDocument.Variables("Test" & i).Delete MsgBox "If present, variable Test" & i & " was deleted." Next lbl_Exit: Exit Sub End Su