Error Handling Vba Access 2003
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Access Vba Error Handling Module
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Error Handling Vba Function
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Error Handling Vba Loop
and is not being maintained. Switch Visual Studio MSDN Library The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location. This documentation is archived and is not being maintained. Error Trapping [Access 2003 VBA Language Reference] Office 2003 You can use the On Error GoTo statement to trap errors and direct procedure flow to the location of error-handling error handling in vba excel statements within a procedure. For example, the following statement directs the flow to the ErrorHandler: label line: On Error GoTo ErrorHandler Be sure to give each error handler label in a procedure a unique name that will not conflict with any other element in the procedure, and make sure you append a colon to the name. Within the procedure, place the Exit Sub or Exit Function statement in front of the error handler label so that the procedure doesn't run the error-checking code if no error occurs. Sub CausesAnError() ' Direct procedure flow. On Error GoTo ErrorHandler ' Raise division by zero error. Err.Raise 11 Exit Sub ErrorHandler: ' Display error information. MsgBox "Error number " & Err.Number & ": " & Err.Description ' Resume with statement following occurrence of error. Resume Next End Sub The Raise method of the Err object generates the specified error. The Number property of the Err object returns the number corresponding to the most recent run-time error; the Description property returns the corresponding message text for a given error. Notes In versions 1.x and 2.0 of Microsoft Access, you might have used the Error statement to generate the error, the Err function to return the error number, and the Error function to return a description of the error. Ex
a full version of Access, while a run-time version just crashes. For a more detailed approach to error handling, see FMS' article on Error Handling and Debugging. The simplest approach is to display the error handling in vba macro Access error message and quit the procedure. Each procedure, then, will have this format vba error handling best practices (without the line numbers): 1 Sub|Function SomeName() 2 On Error GoTo Err_SomeName ' Initialize error handling. 3 ' Code to do something vba error handling exit sub here. 4 Exit_SomeName: ' Label to resume after error. 5 Exit Sub|Function ' Exit before error handler. 6 Err_SomeName: ' Label to jump to on error. 7 MsgBox Err.Number & Err.Description ' Place error handling here. https://msdn.microsoft.com/en-us/library/office/aa172275(v=office.11).aspx 8 Resume Exit_SomeName ' Pick up again and quit. 9 End Sub|Function For a task where several things could go wrong, lines 7~8 will be replaced with more detail: Select Case Err.Number Case 9999 ' Whatever number you anticipate. Resume Next ' Use this to just ignore the line. Case 999 Resume Exit_SomeName ' Use this to give up on the proc. Case Else ' Any unexpected error. Call LogError(Err.Number, Err.Description, "SomeName()") http://allenbrowne.com/ser-23a.html Resume Exit_SomeName End Select The Case Else in this example calls a custom function to write the error details to a table. This allows you to review the details after the error has been cleared. The table might be named "tLogError" and consist of: Field Name Data Type Description ErrorLogID AutoNumber Primary Key. ErrNumber Number Long Integer. The Access-generated error number. ErrDescription Text Size=255. The Access-generated error message. ErrDate Date/Time System Date and Time of error. Default: =Now() CallingProc Text Name of procedure that called LogError() UserName Text Name of User. ShowUser Yes/No Whether error data was displayed in MsgBox Parameters Text 255. Optional. Any parameters you wish to record. Below is a procedure for writing to this table. It optionally allows recording the value of any variables/parameters at the time the error occurred. You can also opt to suppress the display of information about the error. Function LogError(ByVal lngErrNumber As Long, ByVal strErrDescription As String, _ strCallingProc As String, Optional vParameters, Optional bShowUser As Boolean = True) As Boolean On Error GoTo Err_LogError ' Purpose: Generic error handler. ' Logs errors to table "tLogError". ' Arguments: lngErrNumber - value of Err.Number ' strErrDescription - value of Err.Description ' strCallingProc - name of sub|function that generated the error. ' vParameters - optional str
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 http://stackoverflow.com/questions/357822/ms-access-vba-and-error-handling more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags http://www.techrepublic.com/blog/how-do-i/how-do-i-add-custom-error-handling-to-my-access-forms-and-reports/ Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up MS-Access, VBA and error handling up vote 11 down vote favorite 6 This is more an observation than a real question: MS-Access (and VBA in error handling general) is desperately missing a tool where error handling code can be generated automatically, and where the line number can be displayed when an error occurs. Did you find a solution? What is it? I just realized how many hundreds of hours I spared since I found the right answer to this basic problem a few years ago, and I'd like to see what are your ideas and solutions on this very important issue. vba ms-access error handling vba error-handling access-vba share|improve this question edited May 27 '15 at 7:40 shruti1810 2,3211725 asked Dec 10 '08 at 22:24 Philippe Grondier 7,91721753 add a comment| 4 Answers 4 active oldest votes up vote 5 down vote Well there are a couple of tools that will do what you ask MZ Tools and FMS Inc come to mind. Basically they involve adding an: On Error GoTo ErrorHandler to the top of each proc and at the end they put an: ErrorHandler: Call MyErrorhandler Err.Number, Err.Description, Err.LineNumber label with usually a call to a global error handler where you can display and log custom error messages share|improve this answer answered Dec 10 '08 at 22:40 DJ. 12.7k22941 You took the words out of my mouth! –Philippe Grondier Dec 10 '08 at 23:00 3 This is slightly misleading as Err.LineNumber doesn't exist.. So while good practice for generic error handling, it doesn't answer the crux of the original issue about line numbering. If you need to do this then the answer involving Erl would be better if you had to have a line number. –FinancialRadDeveloper Nov 5 '10 at 12:07 add a comment| up vote 5 down vote What about using "Erl", it will display the last label before the error (e.g., 10, 20, or 30)? Private Sub mySUB() On Error GoTo Err_mySUB 10: Dim stDocNa
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 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 Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out Data Management How do I... Add custom error handling to my Access forms and reports? By Susan Harkins | in How Do I..., July 18, 2007, 6:11 AM PST RSS Comments Facebook Linkedin Twitter More Email Print Reddit Delicious Digg Pinterest Stumbleupon Google Plus This information is also available as a PDF download. When capturing and handling errors, you probably think of the Err object, which stores information about the current run-time error. If a form or report encounters an error, you'll find the information you need in an event — the object's Error event to be exact. By default, Access handles action errors without any help from you. On occasion, you might find you want a little more control. When that's the case, take matters into your own hands by usurping the object's Error event. About the Error event Both forms and reports sometimes generate action errors, such as trying to delete a record protected by referential integrity or trying to add a new record without filling in required fields. When this happens, Access displays a predefined warning message that's usually adequate. But if you prefer, you can take charge of the event and force it to do the following: Inhibit the internal message Display a custom message Redirect the application's flow Using the Error event A common form error occurs when you try to save a new record without filling in all required fields (required at the table level). Figure A shows how Access handles this error in a simple form based on the Customers table in Northwind (the sample database that comes with Acce