After adding a dataset, I get the error non invocable member cannot used like method.here is the code public dsRateclass RatingClasslookup(LookUpType type){ dsRateclass ret = null; try { var dataAccess = new LookUpDataAccess(); ret = dataAccess.RatingClasslookup(type); } catch (Exception) { //TODO: Exception handling outstanding throw; } return ret;} 解决方案 这篇关于错误,我无法参加会员,无法使用类似方法的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 10-11 17:08