直接贴示例代码吧

1 public static void UpdateOwnerAndCondo(int buildingID, Action
     
       updateAction) 2 { 3     Building building = new Building(); 4     building.ID = buildingID; 5     using (CafContext context = CafContext.Create()) 6     { 7         context.Configuration.ValidateOnSaveEnabled = false; 8         context.Entry
      
       (building).State = EntityState.Unchanged; 9         updateAction(building);10         context.SaveChanges();11     }12     building.ID = buildingID;13 }