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时长:00:00更新时间:2020-11-09 08:32:51
显示EF实体对象的详细错误信息db.Entry(entity).GetValidationR:方法一:在快速监视中查看db.Entry(entity).GetValidationResult() public class NewsDal { public static News Add(News entity) { using (CmsContext db = new CmsContext()) { News news = new New
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