public ResponseResult<List<NodeView>> GetNextStepRoleUserTree(WfAppRunner runner) { var result = ResponseResult<List<NodeView>>.Default(); try { var wfservice = new WorkflowService(); var nodeViewList = wfservice.GetNextActivityRoleUserTree(runner).ToList<NodeView>(); result = ResponseResult<List<NodeView>>.Success(nodeViewList, "获取流程下一步信息成功!"); } catch (System.Exception ex) { result = ResponseResult<List<NodeView>>.Error(string.Format( " 请确认角色身份是否切换?! {0}", ex.Message)); } return result; }