entity framework 5 更新指定字段

dbSet.Attach(good); var stateEntry = ((IObjectContextAdapter)context).ObjectContext. ObjectStateManager.GetObjectStateEntry(good); stateEntry.SetModified(); stateEntry.SetModifiedProperty("Title"); stateEntry.SetModifiedProperty("UpdateDate"); context.SaveChanges();

　　如果出现

对一个或多个实体的验证失败。有关详细信息，请参见“EntityValidationErrors”属性还需在SaveChanges前先关闭验证实体有效性（ValidateOnSaveEnabled）这个开关最终代码 dbSet.Attach(good); var stateEntry = ((IObjectContextAdapter)context).ObjectContext. ObjectStateManager.GetObjectStateEntry(good); stateEntry.SetModified(); stateEntry.SetModifiedProperty("Title"); stateEntry.SetModifiedProperty("UpdateDate"); context.Configuration.ValidateOnSaveEnabled = false; context.SaveChanges(); context.Configuration.ValidateOnSaveEnabled = true;

　　

转载于:https://www.cnblogs.com/shensigzs/p/4186962.html