On Error In Vba Access
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Ms Access Error Handling Best Practice
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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.number vba Access error message and quit the procedure. Each procedure, then, will have this format
Ms Access On Error Resume Next
(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 In Loop
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/ee358847(v=office.12).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
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 http://stackoverflow.com/questions/1253484/error-handling-in-access-vba 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 http://www.databasedev.co.uk/error-handling.html programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error Handling in Access, VBa up vote 1 down vote favorite I have imported a tab-delimited text file in an Access error handling database on a button click event. The file is properly imported, the issue comes if the user selects a text file of different format, the code will import the improper data into the database and creates a new ErrorLog table. How do I restrict improper data from table? How to do error handling? If a user selects a file that is of improper format (rather than improper data, which generatings an ErrorLog), it will vba error handling pop up a MsgBox, telling the user that the file if not in proper format. Private Sub btnXLUpload_Click() If (IsNull(Me.txtXLFIle.Value) = False Or Me.txtXLFIle.Value <> "") Then MsgBox "Please Select the Excel File First", vbOKOnly Else DoCmd.TransferText acImportDelim, "eBookSpecification", "eBookData", Me.txtXLFIle.Value, True, "" MsgBox "Data has been uploaded in database", vbOKOnly End If Me.txtXLFIle.Value = "" End Sub vba ms-access error-handling access-vba share|improve this question edited Nov 21 '12 at 18:58 riley3131 102115 asked Aug 10 '09 at 7:03 Ashok Gupta 56131527 1 Post the code that you have written already to do that. Don't expect people to give you code that you can use. –shahkalpesh Aug 10 '09 at 7:19 Private Sub btnXLUpload_Click() If (IsNull(Me.txtXLFIle.Value) = False Or Me.txtXLFIle.Value <> "") Then MsgBox "Please Select the Excel File First", vbOKOnly Else DoCmd.TransferText acImportDelim, "eBookSpecification", "eBookData", Me.txtXLFIle.Value, True, "" MsgBox "Data has been uploaded in database", vbOKOnly End If Me.txtXLFIle.Value = "" End Sub –Ashok Gupta Aug 10 '09 at 7:33 Why don't you edit your original question to include the code and delete the unreadable comment? –David-W-Fenton Aug 10 '09 at 16:37 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote For error handling in VBA you have to use On Error statement. One of best practices to
GUI Design GUI Design Examples Submit Your Examples Resources Resources Database News Knowledge Base Microsoft Access Products, Tools & Add-In's Online Shop UK Visitors US Visitors Info Contact Us Advertise With Us Link To Us Write For Us Competitions Microsoft Access VBA Error Handling In Microsoft Access Error handling routines are very powerful tools in Microsoft Access if they are used correctly. Surprisingly though, errors and their properties are relatively unknown to a large part of the development community. To effectively implement error handling in your applications, it is necessary to know the resources that are available when your program encounters an error. Assuming we are working with non-executable programs (.mdb's or .accdb's), the most important thing to understand is the global settings for error trapping in our VBA procedure. Under the "Tools » Options" menu, then on the "General" Tab there are three options for error trapping: Break on all errors » Stops code execution when an error is encountered. Break in class module » Stops code execution in class modules only. Break on unhandled errors » Stops code execution only if there is no error handling routine present in the procedure. This is the global setting for error handling. So, if error traps are present in our procedures, they will be ignored if we have specified the "Break on all errors" option. In the following image, we've done just that: There are three important statements in an error handling routine: On Error, Resume and GoTo. Typically, they will appear together at the beginning of a procedure: On Error Resume Next On Error GoTo 0 The "Resume" and "GoTo" statements simply tell VBA what to do when an error is encountered. First, Resume has two primary actions associated with it: Resume Next » Ignores the encountered error and continues execution with the next line of code. Resume (label) » After an error occurs, code execution resumes on the first line of code after the labeled line. Similarly, GoTo is usually found in two forms: GoTo 0 » Terminates the procedure's error handler. In other words, this statement disables it. GoTo (label) » Identical to the Resume statement. Execution jumps to the first line after the labeled line. So which is best to use? I