In this case, the division is by 0 and if you do not want your script to get stuck due to this error then you put ‘On Error Resume Next’ at the top of your script as shown below.On Error Resume Next ( Putting error handling statement)Dim resultresult = 20/0 ( Performing division by 0 Scenario)If result = 0 Then ( Checking value of result variable)Msgbox “Result is 0.”ElseMsgbox “Result is non-zero.”End If #2) Err Object:This method is basically used to capture the details of the Error. If you want to know more about the Error like Number, description, etc., then you can do so by accessing the properties of this Object.As this is an intrinsic object, there is no need to create an instance of this object to access its properties i.e.

1. Vba On Error Resume Next For Each Loop

You can use this directly in your scripts.Following is the list of properties of Err Object with their details:. Number: This will tell you the error number i.e. The integer value of the type of the error occurred. Description: This will tell you about the error i.e. The description of the error.

Raise: This will let you raise the specific error by mentioning its number. Clear: This will clear the error i.e. Will set to error handler to nothing.Let’s use the same Example in this case also:Dim resultresult = 20/0 (Performing division by 0 Scenario)If Err.Number 0 Then (Making use of Err Object’s Number property)Msgbox “Number of the Error and Description is “& Err.Number & “ “ & Err.Description (Give details about the Error)Err.Clear (Will Clear the Error)End IfOne more to the list:#3) On Error GoTo 0:This method is however not an Error Handler mechanism directly because this is used to disable any error handler that is used in the script. This will set the handler to nothing i.e. No more error handler will be supported in the script. ConclusionI hope this tutorial must have provided an insight regarding the importance and effectiveness of using Error Handling.

This tutorial will, in turn, help you in dealing with the VBscript errors in a more effective manner.Finally, this is the last topic of.: I will cover some interview questions related to VBScript in my next tutorial which will include questions from all the topics that I covered till now in this series.Share your experience on using Error Handling Mechanism and let us know if you have any queries.

Writing VBA code is hard, but properly debugging code is even harder. Sounds like non-sense? Well I dare say developers spend more time debugging code than writing it. Looking for errors is what developers do most of the time! A critical part of debugging is proper error handling (VBA error handling in our case).Debugging is twice as hard as writing the code in the first place.

Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.— Brian W. KernighanHowever, today I don’t want to expand on. That I covered in. No – today let’s learn how to properly handle errors The Mouse Trap AnalogyWhat is error handling? Take this analogy: Say you have a mouse (an error) in the house which turns up every now and then in the least expected moment as slips from your hands (an uncaught exception if you prefer). Without knowing where the mouse is and when it (the exception/error) will appear (in which line of code) you would need to search entire house to catch it (run through the entire code in our case).

Obviously a better approach is setting mouse traps in several critical places in the house (corridors etc.) and waiting for the mouse to fall into your trap.So what is our mouse trap when speaking about VBA error handling? The On Error do this statement! Using VBA On ErrorThe VBA On Error statement – tells VBA what it should do from now on, within the vicinity of the current block of code (Function or Sub), when an error/exception is raised. It is like setting a mouse trap – with the difference that you can tell it to drop the mouse off the dumpster or put it in your hands to manage.Let’s remind the full syntax of the On Error statement in VBA first. On Error GoTo lineLabel 0 - 1 if preffered.

The Goto instruction in VBA let’s you do a jump to a specific VBA code line number to follow through with error handling or simply to let code execution move on. It comes in three flavors:. lineLabel – will jump to a specific line number label. 0 – will disable any previously set error handling within the current procedure.

Vba On Error Resume Next For Each Loop

Resume Next – Simply ignore any error raised and move code execution to the next line. VBA error handling for the lazy, although beware in case of recurring errors (error overflow) – an error will still be raisedOn Error examplesWith the above synax in mind let’s look at some On Error VBA error handling examples:On Error Resume NextSkip any raised errors. X = y / 0 'Divide by 0 error!The VBA Err ObjectWhenever a VBA error is raised the Err object is updated with relevant information needed to diagnose the error. Let look at this object for a second.

Err Object functions and propertiesThe Err object facilitates the following functions and properties:. Number – the most important property of the Err Object, the error number raised. The available range for custom user errors is 513-65535. Clear – clear the current Error. Useful when using the Resume Next statement.

Raise(Number, Source, Description, HelpFile, HelpContext) – raises an error. You need to provide an error Number. See here for a whole list of. Want to raise a custom error? The available range for custom user errors is 513-65535.

Source – the source of the error – usually your VBAProject. Description – the description of the error.

Exit SubThe ErrorHandler block in this case redirects to the designated error handler based on the Err.Number. Unrecognized errors are redirected to the OtherError block. This makes VBA error handling neat and tidy.

I definitely prefer the multiple VBA error handler as it gives you and the user more insights and control over the errors raised by VBA. Custom VBA errorsIn some cases you will want to raise a custom error. The best way to do it is using the Err.Raise procedure.When creating custom errors make sure to keep them well documented. I recommend creating an Enum object and listing all custom errors like below. On Error GoTo ErrorHandlerErr.Raise CustomErrors.CustomErr1Exit SubErrorHandler:Select Case Err.NumberCase CustomErrors.CustomErr1:GoTo CustomerErr1HandlerCase CustomErrors.CustomErr2:GoTo CustomerErr2HandlerCase Else:GoTo OtherErrorEnd SelectCustomerErr1Handler:Debug.Print GetErrorMsg(CustomErr1)'Handle the errorErr.ClearExit SubCustomerErr2Handler:Debug.Print GetErrorMsg(CustomErr1)'Handle the errorErr.ClearExit SubOtherError:Debug.Print GetErrorMsg(Err.Number)'Handle the errorErr.ClearExit Sub.