Smrf.NodeXL.ExcelTemplate.TaskPane.ShowLayoutTypeIsNullNotification C# (CSharp) Method

    ShowLayoutTypeIsNullNotification()
    {
        AssertValid();

        NotificationUserSettings oNotificationUserSettings =
            new NotificationUserSettings();

        if (!oNotificationUserSettings.LayoutTypeIsNull)
        {
            // The user doesn't want to be notified.

            return (true);
        }

        Boolean bReturn = true;

        const String Message =
            "The Layout is set to None.  If the graph has never been laid"
            + " out, all the vertices will be placed at the upper-left corner"
            + " of the graph pane."
            + "\r\n\r\n"
            + "If you want to lay out the graph, click No and select a"
            + " different Layout.  "
            + HowToSetLayoutTypeMessage
            + "\r\n\r\n"
            + "Do you want to read the workbook?"
            ;

        NotificationDialog oNotificationDialog = new NotificationDialog(
            "Layout is None", SystemIcons.Warning, Message);

        if (oNotificationDialog.ShowDialog() != DialogResult.Yes)
        {
            bReturn = false;
        }

        if (oNotificationDialog.DisableFutureNotifications)
        {
            oNotificationUserSettings.LayoutTypeIsNull = false;
            oNotificationUserSettings.Save();
        }

        return (bReturn);
    }