查找方法在实体框架中返回缓存数据

Question

Is there any difference between

var c = context.users.Find(100)

and

var c = context.users.FirstOrDefault(o=>o.id = 100)

I don't know why Find method returns cache data.

Answer 1

如果具有指定键的对象已附加到数据上下文，则Find（）将避免访问数据库。