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Asked: 2026-05-11T04:12:15+00:00

I frequently encounter this situation in my VB6 applications Private Sub DoSomething On Error

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I frequently encounter this situation in my VB6 applications

Private Sub DoSomething    On Error Goto err1    Call ProcessLargeBatch1   Call ProcessLargeBatch2   '... more ...'    Exit Sub  err1:   Call Cleanup 'Specific for DoSomething'   Call HandleError 'General error handling: Logging, message box, ...'  End Sub

The Cleanup procedure sometimes reverts actions, rolls back a transaction, deletes temporary files, and so on. In most cases this operation can also fail.

What do I do in this case? I’d add an On Error Resume Next into the error handler but that deletes the existing Err object. Adding an error handler to Cleanup has the same problem.

What is the best way to ensure that the original errors still gets processed/logged?

EDIT: One additional problem is that I also want to notify the user of the error. Sometimes it is important, that the cleanup happens fast and I don’t want the message box block the application for a long time and do the cleanup after the user acknowledges the error.

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1 Answer

  1. Firstly, read all the information out of the Err object that you will need, i.e. number, description, etc., then clear the error and do what you want.

    Change the way you inform the user to use the values you have cached, and not to use the Err object itself.

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