XenAdmin.Wizards.PatchingWizard.PatchingWizard_PrecheckPage.PageLeave C# (CSharp) Method

        public override void PageLeave(PageLoadedDirection direction, ref bool cancel)
        {
            DeregisterEventHandlers();
            if (direction == PageLoadedDirection.Back && _worker != null)
            {
                _worker.CancelAsync();
                _worker = null;
            }

            base.PageLeave(direction, ref cancel);
        }