3043 - Disk or network error

I have a button on a form that does a db backup to the A drive. If there is no disk in the drive I get an error 3043, "Disk or network error" which I trap for and display a msgbox. For some reason after the message box is displayed and the user clicks OK you can no longer do a backup. It is almost like the button click does not run the sub routine anymore. You have to close the app and re-open it and click it again. Anyone seen this before...? If so how can I fix it. How can I make the button run the backup routine again after erroring out once?

Put breakpoints into your button click event, to see what's happening.

Here is the code:

Private Sub cmdBckNow_Click()
Set wrkDefault = DBEngine.Workspaces(0)

On Error GoTo err_handle

If InStr(1, txtMedia.Text, ".mdb", vbTextCompare) = 0 Then
MsgBox "Error"
Else
db.Close
DBEngine.CompactDatabase RetAppPath, txtMedia.Text
Call frmMain.Initialize
Call frmMain.Gath_Comp
Call frmMain.Fill_Comp
End If

err_handle:
If Err.Number = 3043 Then
MsgBox Err.Description, vbInformation, "Error"
Exit Sub
End If
End Sub

I figured if I did an Exit Sub in the err_handle that it would exit the sub and then when the button was clicked again it would re-enter and run the code. This is not the case. Cannot figure it out....

Try this:

Code:

---

Private Sub cmdBckNow_Click()
    On Error GoTo err_handle

    Set wrkDefault = DBEngine.Workspaces(0)

    If InStr(1, txtMedia.Text, ".mdb", vbTextCompare) = 0 Then
        MsgBox "Error"
    Else
        db.Close
        DBEngine.CompactDatabase RetAppPath, txtMedia.Text
        Call frmMain.Initialize
        Call frmMain.Gath_Comp
        Call frmMain.Fill_Comp
    End If
    Exit Sub

err_handle:
    If Err.Number = 3043 Then
        MsgBox Err.Description, vbInformation, "Error"
        Exit Sub
    End If
End Sub

---

I added an Exit Sub just before the error handler code. It's a long shot, but is often a good idea to do anyway. Is there something in your frmMain.Initialize, etc. functions that might disable it somehow?

That still does not do it. The frmMain.Initialize function just re-opens the database connection after doing the backup, does not disable anything. After the code receives the 3043 error it goes directly to the err_handle and does not make it to the frmMain.Initialize function. You would think that after the err message is displayed it would hit the exit sub and bail out so that when you came back to click it again it would re-run, wierd.

To tell you the truth, I've never seen this happen before. A possibility is that VB's error handling is going nuts, and always bypassing the function :(. Does it display "Error" or anything like that afterwards, or does it just stay silent?

Heres the other strange thing. I have two completely seperate forms that run a database backup. If I encounter the 3043 on one form the database backup will not work anyplace else within the program from any other form until I close the app and re-open it.

It displays the err_handle message box and then stays silent. Everytime you click the backup db button after the error it does nothing, no error message, no app crash, nothing.

Try a breakpoint in the commandbutton click event. When you click after the error, does it break?

I put the breakpoint here:

Sub cmdBckNow_Click()

It breaks when I first click the button, I hit run again, it errors out, I click the button again and it breaks. Is this what you wanted to know?

Yes. We now know that it is opening the event. From this breakpoint, single-step through it to find out where it's going strange.

I figured it out. Never did the debugging stuff before, very helpfull! The problem was I close the DB just before I do the backup, it runs the msgbox but does not open the db again so it is closed. It had something to do with that. So I open the db again just after I display the err message and now it works! Thank you very much for your help.....