Error Handling

[healy]

For those of you who log errors, here's a handy little way to find out what line number errored : Erl
Here's an example(this code is intentionally set up to error):
[code]
Private Sub Command1_Click()
1 On Error GoTo Hell
Dim x() As String

2 x(1) = "This is a test"
3 Exit Sub

Hell:
4 Debug.Print "Error- " & Err.Description & " at Line Number: " & Erl
End Sub
[\code]

If your lines aren't numbered, it'll return a 0. There's a cool little tool out there that will number all of your lines for you, called vbAdvantage. Just thought I'd share since there's nothing about it in the MSDN Library

[S@NSIS]

Why would we want to number our lines when VB gives us the option of debugging and stepping through our code one line at a time (thus seeing exactly which line our error occurs at).

No offence healy, but reverting back to using line numbers is not the way to go about debugging VB programs

Shaun

Originally posted by S@NSIS
Why would we want to number our lines when VB gives us the option of debugging and stepping through our code one line at a time (thus seeing exactly which line our error occurs at).

No offence healy, but reverting back to using line numbers is not the way to go about debugging VB programs

Shaun

Shaun, it ain't that bad 'a code, I have seen people (or someone) wanting to do this before. So, whoever they were (or are), if it works, you have found the code you need.

[Edited by Matthew Gates on 10-03-2000 at 06:26 PM]

[healy]

For the code I write, I actually open a text file for the purposes of logging. I also have an error handler in almost every procedure.
When a client calls up and tells me that one of our apps is having a problem, I find it really nice to know why and the exact line of code the problem is coming from...
Other than that, I can see no other practical reason for line numbers.