Question

I’m a bit new to VB.NET. I was wondering if there was a way to detect if a file being open doesn’t exist, then something will happen. Is this possible and is it possible using the “If” statement?

Answer 1

You can use file.exists(filename) to check before you open it, or a try-catch block:

If not System.IO.File.Exists(filename) Then
  ' file does not exist
  end if

or

Try
  open ...
Catch ex As Exception
  MsgBox(ex.Message)  ' not-found error handling goes here
End Try

You can add imports system.io at the top of your file to use File.Exists instead of System.IO.File.Exists.