I copied the following code from MSDN, I suppose that On Error GoTo will avoid run-time error message box show up. But when I try to run the following code in debug mode line by line, run-time error message box still poped up, why? If error occurs in line 'Kill "myfile.txt"', why it didn't go to ErrorHandler?
Private Sub Command1_Click()
Dim Msg As String
On Error GoTo ErrorHandler
Open "myfile.txt" For Output As #1
On Error GoTo 0
On Error Resume Next ' Defer error trapping.
ObjectRef = GetObject("MyWord.Basic") ' Try to start nonexistent
' object, then test for
'Check for likely Automation errors.
If Err.Number = 440 Or Err.Number = 432 Then
' Tell user what happened. Then clear the Err object.
Msg = "There was an error attempting to open the Automation object!"
MsgBox Msg, , "Deferred Error Test"
Err.Clear ' Clear Err object fields
Exit Sub ' Exit to avoid handler.
ErrorHandler: ' Error-handling routine.
Select Case Err.Number ' Evaluate error number.
Case 55 ' "File already open" error.
Close #1 ' Close open file.
' Handle other situations here...
Resume ' Resume execution at same line
' that caused the error.
Visual Basic Classic
8/22/2022 - Mon
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