public void Stop() { /* * 取消 CrowdRealTimeEvent 事件 * stop */ if (m_vm != null) { WinFormAppUtil.AppContainer.Instance.EvtAggregator.GetEvent <CrowdRealTimeEvent>().Unsubscribe(OnSearchResultReturned); m_vm.StopCrowdRealtime(); m_vm = null; } }