You can use the Immediate window to display the message associated with a particular error.
EXCEL VBA ON ERROR EXIT CODE
You can always split the Code window horizontally just drag the split bar If none can be found then this is a fatal error.Īn error handler is automatically disabled when a procedure is exited. If an run time occurs inside the actual error handler then control is passed to the calling procedure until an active error handler is found. Make sure any screenupdating, cursor or statusbar is always reset including in any error handling. If you do not use an On Error statement then any run time errors are fatal and execution will be stopped and a message box displayed.Īlways add an Error Handler to every procedure and function.Īll objects must be set to Nothing before exitingĮrror handling should be displayed if the gbDEBUG_ERRORMESSAGES constant is used and is set to True. (Alt + F8) - Steps through an error handler. (Alt + F5) - Resume execution (through an error handler). Resets the Err object and resets the Err.Number to zero.Įxits the procedure, function or propertyĮquivalent of a break point, this will cause the program to enter break mode Returns control to the statement at which the error occurred (statement is re-run)Įxecution jumps to the line label when an error occurs Returns control to a specified line label
Returns control to the statement following the one at which the error occurred You can use the "On Error" statement to specify what happens when an error occurs: Property Your error handler procedures will not work on users PC's if they have the "Break on all Errors" option set in their (Tools > Options)(General tab) of the VBE. Unused error numbers in the range 1 - 1000 are reserved for future use by Visual Basic. You can test and respond to trappable errors using the On Error statement and the Err object. Some trappable errors can also occur during development or compile time. Trappable errors can occur while an application is running.
EXCEL VBA ON ERROR EXIT PASSWORD
If the VBE project is password protected then this button will be disabled. Click on the Debug button to find out which line of code is causing the error. When you get an error a dialog box will be displayed. If the project is password protected then to enter debug mode is not an option.Ī run-time error will normally cause execution to stop and a message box will be displayed displaying the error number and a short decription the error.Ī good application does not let the user see these error messages and rather incorporates error handling to trap errors and take the appropriate action.Īt the very least your error handling should display a more meaningful error message. The best way to handle errors is to have a centralized error handling procedure or procedures.Įrror dialog boxes offer a few options: end the procedure, get help or enter break mode to debug the code.Įxecution will always stop at the offending line of code and it will be highlighted in yellow. To prevent error handling code from running when no error has occurred, place an Exit Sub or Exit Function statement immediatley before the error handling routine. The term inline error handling refers to checking for errors after each line of code is executed.Īn error handling routine is not a sub or function but is just a section of code marked by a line label.
The most common of course is the logical error. There are various types of errors that can occur when running and writing procedures. There are various debugging tools to help to locate the source of errors that are detected.
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