/// <summary>
        /// Executes in two distinct scenarios.
        ///
        /// 1. If disposing is true, the method has been called directly
        /// or indirectly by a user's code via the Dispose method.
        /// Both managed and unmanaged resources can be disposed.
        ///
        /// 2. If disposing is false, the method has been called by the
        /// runtime from inside the finalizer and you should not reference (access)
        /// other managed objects, as they already have been garbage collected.
        /// Only unmanaged resources can be disposed.
        /// </summary>
        /// <param name="disposing"></param>
        /// <remarks>
        /// If any exceptions are thrown, that is fine.
        /// If the method is being done in a finalizer, it will be ignored.
        /// If it is thrown by client code calling Dispose,
        /// it needs to be handled by fixing the bug.
        ///
        /// If subclasses override this method, they should call the base implementation.
        /// </remarks>
        protected override void Dispose(bool disposing)
        {
            //Debug.WriteLineIf(!disposing, "****************** " + GetType().Name + " 'disposing' is false. ******************");
            // Must not be run more than once.
            if (IsDisposed)
            {
                return;
            }

            if (disposing)
            {
                // Dispose managed resources here.
                if (m_dlg != null)
                {
                    m_dlg.Dispose();
                }
                if (m_vc != null)
                {
                    m_vc.Dispose();
                }
            }

            // Dispose unmanaged resources here, whether disposing is true or false.
            m_dlg      = null;
            m_vc       = null;
            m_pageInfo = null;
            m_hfSets   = null;;

            base.Dispose(disposing);
        }
        public override void TestTearDown()
        {
            if (m_dlg != null)
            {
                m_dlg.Dispose();
                m_dlg = null;
            }
            m_hfSets   = null;
            m_pageInfo = null;

            base.TestTearDown();
        }