获取最小值和最大值从数据库Linq到MVC中的Sql查询？

Question

here is my query that i have written in my controller

    public ActionResult Description()
    {
       var firstId = from p in obj.Cubisms
                      where p.Id = MIN(Id)
                      select p;
    }

but here "MIN" or "Max" gives error what should be the query if i am wrong

Answer 1

You can use Enumerable functions to do the same,

  var min = obj.Cubisms.Min(r=> r.Id);
  var max = obj.Cubisms.Max(r=> r.Id);

Answer 2

 var firstId = (from p in obj.Cubisms select p.Id).Min();

Answer 3

Try this:

var firstId = (from p in obj.Cubisms
                orderby p.Id
                select p).First();

Answer 4

尝试这个：

var firstId = (from p in obj.Cubisms select p.Id).Min();