private int getPageIndex(WizardPage page)
        {
            int index = -1;
            if (page != null)
            {
                for (int i = 0; i < Pages.Count; i++)
                {
                    if (page.Equals(Pages[i]))
                    {
                        index = i;
                        break;
                    }
                }
            }

            return index;
        }