Error Trapping Access 2010
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2007, VB, and VBA Error Handling and Debugging Tips for Access 2007, VB, and VBA Basics for Building Access 2007 Runtime-Based Solutions Building SQL Statements that Include Variables and Controls in Access 2007 Constructing Modern Time Elapsed Strings in Access 2007 Counting the Number of Working Days in Access 2007 Creating Managed Add-ins for error trapping vbscript Access 2007 Customizing the Office Fluent User Interface in Access 2007 Deploying Access 2007 Runtime-Based Solutions Developing Access 2007 Solutions with Native C or C++ Developer Considerations for Choosing File Formats in Access 2007 Error Handling and Debugging Tips for Access 2007, VB, and VBA Integrating Workflows into Access 2007 Applications Performance Tips To Speed Up Your Access 2007 Database Security Considerations and Guidance for Access 2007 Tips and Techniques for Queries in Access 2007 Transitioning Your Existing Access Applications to Access 2007 Using Excel Date Functions in Access 2007 Using SQL Server 2008 Table-valued Parameters in Access 2007 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. This documentation is archived and is not being maintained. Error Handling and Debugging Tips for Access 2007, VB, and VBA Office 2007 This content is outdated and is no longer being maintained. It
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F-P Statements On Error Statement On 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 https://msdn.microsoft.com/en-us/library/ee358847(v=office.12).aspx Namespace and Type) Imports Statement (XML Namespace) Inherits Statement Interface Statement Mid Statement Module Statement Namespace Statement On Error Statement Operator Statement Option
user may be left viewing the faulty code in a full version of Access, while a run-time version just crashes. The simplest approach is http://allenbrowne.com/ser-23b.html to display the Access error message and quit the procedure. Each procedure, http://www.techrepublic.com/blog/five-apps/five-tips-for-handling-errors-in-vba/ then, will have this format (without the line numbers): 1 Sub|Function SomeName() 2 On Error GoTo Err_SomeName ' Initialize error handling. 3 ' Code to do something here. 4 Exit_SomeName: ' Label to resume after error. 5 Exit Sub|Function ' Exit before error handler. 6 Err_SomeName: ' Label error trapping to jump to on error. 7 MsgBox Err & " " & Error$ ' Place error handling here. 8 Resume Exit_SomeName ' Pick up again and quit. 9 End Sub|Function The labels (lines 4 and 6) must be in the current procedure, and must be unique. For a task where several things could go wrong, replace lines 7~8 with more detail: error trapping access Select Case Err Case 9999 ' Whatever number you anticipate. Resume Next ' Use this to just ignore the line. Resume Exit_SomeName ' Use this to give up on the proc. Case Else ' Any unexpected error. Call LogError(Err, Error$, "SomeName()") Resume Exit_SomeName End Select The Case Else in this example calls a custom procedure 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 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. Below is the procedure for writing to this table. If you wish to go further, you could extend it to count errors recorded recently and suppress the display of the same message repeatedly, or give up retrying locking errors. Sub LogError (ByVal iErrNumber As Integer, ByVal strErrDescription A
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 Software Five tips for handling errors in VBA Effective error handling can mean the difference between a seamless, user-friendly experience 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 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: S