将Linq转换为SQL的便捷方法

1:  using (NorthwindEntities context = new NorthwindEntities())

2:  {

3:      string s = string.Empty;

4:

5:      var query = context.Region.Where(o=>o.RegionID<100).OrderBy(p=>p.RegionID);

6:      s = (query as ObjectQuery).ToTraceString();

7:      Response.Write(s);

8:

9:      Response.Write("<hr/>");

10:

11:      var query1 = from p in context.Region

12:                   where p.RegionID > 0

13:                   select p;

14:      s = (query1 as ObjectQuery).ToTraceString();

15:      Response.Write(s);

16:  }