摘要： using (SysPortalEntities sys = new SysPortalEntities()) { var query = sys.BS_RequestClassItem.Where(EntityExtension.Contains<BS_RequestClassItem, string>(c => c.sCreator, userID)).Where(r=>r.nRequestClassID==requestClassID); foreach (var item in query) { sys.DeleteObject(item); } try { i 阅读全文