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excel vba generic error handler Crowley, Texas

What do you guys think is a good test of the memory cost? Reply With Quote 05-14-2009,06:34 PM #4 GTO View Profile View Forum Posts View Blog Entries View Articles VBAX Guru Joined Sep 2008 Posts 3,254 Location Yes; any procedure that you want Hope this helps, Mark Last edited by GTO; 05-14-2009 at 06:44 PM. I've been using the Professional Excel Development error handling method with great success for many years.

After the error information has been saved, the AfterHandlerCalled event is raised to give the caller a chance to provide a custom response to the error, and the "AppSpecificHandler" private subroutine General Declarations The declarations section should define some variables used by the routines ' Current pointer to the array element of the call stack Private mintStackPointer As Integer ' Array of By seeing how your code runs (which procedures get called, which IF statement branch is taken, how loops work, etc.) you gain a much better understanding of how your code work If the error handler is triggered after assigning this value, you will have a better idea of where the error occurred.

For instance, rather than a simple message that an error occurred, you can specify the exact error number and message: MsgBox "Error: (" & Err.Number & ") " & Err.Description, vbCritical Rather than Top Level Procedure within Level 1 Procedures within Level 2 Procedure.... On Error GoTo PROC_ERR mErrHandler.Push "Proc1" Call Proc2 PROC_EXIT: mErrHandler.Pop Exit Sub PROC_ERR: mErrHandler.HandleError GoTo PROC_EXIT End Sub Private Sub Proc2() ' Comments: This procedure is called from the Proc1 procedure The second form, On Error Resume Next , is the most commonly used and misused form.

Most importantly, youíll minimize the often frustrating process that developers and users face when trying to reproduce crashes. If the user does not cancel the error handler, by setting Cancel to True, the error handler proceeds to save error state information to the log file. Debug.Assert Statements The Debug.Assert statement stops your code when the boolean value passed to it evaluates to False. If you had a local variable pointing to a class, that class' Terminate event would fire when an unhandled error occurred.

These are the ones you should check: Number The error number, which is useful for testing. Awards & Reviews For Developers & Enterprises Compare to Microsoft'sCode Librarian "The code is exactly how I would like to write code and the algorithms used are very efficient and Disable or Eliminate Debugging Code Before delivering your application, make sure your debugging code is removed or disabled. The problem I have is that the ErrorHandler doesn't seem to fire for any of the errors that get reported by Excel....I still get the default Error Message box giving the

This method is called if a run-time error branches to a section of code which calls this method. The command lets you run the procedure (and any procedures it may call), and go to the next line in the calling procedure. Far better to have an error arise and trap for that than a program simply stop for the end-user. Mark Reply With Quote 05-14-2009,06:24 PM #3 scott56 View Profile View Forum Posts View Blog Entries View Articles VBAX Regular Joined Jun 2008 Location Buderim, Queensland Posts 54 Location So do

Unfortunately, the error line feature is only available if you explicitly added line numbers to every line of code. Leave a Reply Cancel reply Your email address will not be published. This causes code execution to resume at the line immediately following the line which caused the error. What is that the specific meaning of "Everyone, but everyone, will be there."?

Maybe you want to test it multiple times and donít want to enter it each time on the Immediate Window, or maybe the procedure call is too complex to use in To start viewing messages, select the forum that you want to visit from the selection below. Some of this can only be done manually, but automated tools can help you document your application plus detect problems that would otherwise be very difficult to detect. You can control that exit by including an exit routine like this: Private | Public Function | Sub procedurename() ¬† On Error GoTo errHandler ¬† ... exitHere: ¬† ...

It is very important that you reset the events in the Error handler. don't want to ' go up the error stack but just inform the ' calling program that they didn't get a good result from this ' function call so they can Step Out [Ctrl Shift F8] Run the current procedure and go to the line after the line that called the procedure. On Error GoTo PROC_ERR mErrHandler.Push "chkResponseMode_Click" mErrHandler.DisplayMsgOnError = Not (chkResponseMode.Value) PROC_EXIT: mErrHandler.Pop Exit Sub PROC_ERR: mErrHandler.HandleError GoTo PROC_EXIT End Sub Private Sub mErrHandler_AfterHandlerCalled() ' Comments: This event is raised after the

Rob Bovey Application Professionals http://www.appspro.com/ Code Example (Shari W) ' Show how to call a function using this error handling method. A single (global) error handler should process unexpected errors and reveal information beyond the error number and description. I could put the same error handler in each module but I'm looking for something more general. This is the main routine which handles a run-time error.

You just wouldn't have the information about the stack that would be critical to finding out where the error occurred. Right now I have to outfit all my functions with error handling that will work with the handler system I'm using. –Shari W Sep 27 '13 at 18:35 | show 1 I like the fact that you don't need an error handler in each routine ( i.e. -3 lines when using : ) but instead only add 2 lines of code (or In short, Resume Next disables error handling from that line forward (within the procedure).

Do you know which email the client is using? This is a rare situation because I can convert 99% plus of these into case 2 by restructuring my code. An active error handler is the code that executes when an error occurs and execution is transferred to another location via a On Error Goto

This is one of many features in FMSís Total Visual CodeTools. Reply With Quote 05-15-2009,02:29 AM #5 xld View Profile View Forum Posts View Blog Entries View Articles Distinguished Lord of VBAX VBAX Grand Master Joined Apr 2005 Posts 24,522 Location No, lErrNum = ERR.Number ' If this is a user cancel, set the silent error flag ' message. Of course, running a procedure this way only works if you donít have to pass parameters to it.

Function GetErrorTrappingOption() As String Dim strSetting As String Select Case Application.GetOption("Error Trapping") Case 0 strSetting = "Break on All Errors" Case 1 strSetting = "Break in Class Modules" Case 2 strSetting For example, dividing a number by zero or a script that is written which enters into infinite loop. It instructs to VBA to essentially ignore the error and resume execution on the next line of code. This makes debugging much more difficult.