runtime error 0?

I have a listview, first column = files, second column = size, on the dblclick event it msgbox's the file's size.

I have this error handler:

VB Code:

On Error GoTo error
 
msgbox ListView1.ListItems.Item(ListView1.SelectedItem.Index).SubItems(1)
 
error:
MsgBox Err.Description & vbnewline & Err.Number & vbnewline & Err.Source

and it just msgboxes '0'. That's all, no message, but when I take the error handler out, it doesn't give me an error at all.

0 is no error. You are running into the error handler sub since you dont have an Exit Sub line before it.

VB Code:

On Error GoTo error
 
msgbox ListView1.ListItems.Item(ListView1.SelectedItem.Index).SubItems(1)
Exit Sub
error:
MsgBox Err.Description & vbnewline & Err.Number & vbnewline & Err.Source