Disable 'Ding' on enter

Question

Trying to disable the 'ding' sound when hitting enter from a textbox.

My code:

Private Sub StoreNumberBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles StoreNumberBox.KeyUp

        If BackgroundWorker1.IsBusy Then
            Exit Sub
        Else
            If e.KeyCode = Keys.Enter Then
                ClearTextBox(Me)
                PullIPs()
            End If
        End If
    End Sub

Now, before I get a bunch of nasty grams. I googled the hell out of this issue, and all results came back to adding the following code:

Private Sub StoreNumberBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles StoreNumberBox.KeyUp

    If BackgroundWorker1.IsBusy Then
        Exit Sub
    Else
        If e.KeyCode = Keys.Enter Then
            e.SuppressKeyPress = True 'add me
            ClearTextBox(Me)
            PullIPs()
        End If
    End If
End Sub

The above code makes no difference for me. Am I doing something wrong, or is there another option?