The message in the Run-time error dialog box is a little more helpful.
Excel vba on error exit code#
When a runtime error occurs, it will stop the code and show you the error dialog box. Run time errors will occur only when all the syntax and compile errors are being taken care of.įor example, if you run code that is supposed to open an Excel workbook, but that workbook is unavailable (either deleted or name changed), your code would give you a runtime error. Runtime errors are those that occur when the code is running. You can read more about Option Explicit here. This is a good practice as it shows an error in case you have a misspelled variable. If there is any variable that has not been declared, VBA would show an error.
Note about ‘Option Explicit’: When you add ‘Option Explicit’, you will be required to declare all the variables before running the code. This is because the IF statement needs to have the ‘ Then‘ command, which is missing in the below code. In the below code, as soon as I hit enter after the second line, I see a compile error. Syntax ErrorĪ syntax error, as the name suggests, occurs when VBA finds something wrong with the syntax in the code.įor example, if you forget a part of the statement/syntax that is needed, then you will see the compile error. Let’s quickly understand what these errors are and when you’re likely to encounter these. There are four types of errors in Excel VBA: VBA Error Handling with ‘On Error’ Statements.Configure Error Settings (Handled Vs Unhandled Errors).Using Debug to Find Compile/Syntax Errors.' If we get here, then return the macro execution back to the original ' section of the macro, to the line after the one that caused the error. Just stop the program On Error GoTo 0 Workbooks.Open MyFile Let him browse for the file MyFile = Application.GetOpenFilename If MyFile = False Then Exit Subġ What if the 2nd file is corrupt? We don't want to recursively throw ' the client back into this error handler. Click OK to browse for the " MyPrompt = MyPrompt & "file, or click Cancel to end the program" Ans = MsgBox(Prompt:=MyPrompt, VbMsgBoxStyle:= vbOKCancel) If Ans = vbCancel Then Exit Subġ The client clicked OK. It is possible the " MyPrompt = MyPrompt & " file has been moved. MyPrompt = "There was an error opening the file. ' Set up a name for the Error handler FileNotThere: Use Exit sub, otherwise the macro ' execution WILL continue into the error handler Exit Sub ' If we get here, cancel the special error handlerġ The macro is done. Workbooks.Open Filename:="C:\NotHere.xls" We definitely do not want this error handler invoked for another error later in the macro, such as a division by zero. Do you see why it is important to cancel the error handling? In the following code, we've written a special error handler to handle the necessary action if the file has been moved or is missing.
This line is a fictitious line that instructs Excel to go back to the normal state of displaying the End/Debug error message when an error is encountered.
The code to cancel any special error handling is On Error Goto 0. This is very non-intuitive and tends to confuse people. Immediately after the line of code that you suspect will cause the error, add code to turn off the special error handler. Note that in this line, you do not include the colon after the label name. In your macro, just before the line that may likely cause the error, add a line reading On Error GoTo MyErrorHandler. If you want to return control of the macro to the line after the one that caused the error, use the statement Resume Next.