// 查询上下文中的所有学生
public static void Query()
{
using (EFTPTEntities context = new EFTPTEntities())
{
var people = from p in context.People.OfType<Student>()
select p;
foreach (var s in people)
{
Console.WriteLine("{0} {1} Degree: {2}",
s.LastName,
s.FirstName,
s.Degree);
}
}
}
// 查询上下文中的所有学生
public static void Query()
{
using (EFTPTEntities context = new EFTPTEntities())
{
var people = from p in context.People.OfType <Student>()
select p;
foreach (var s in people)
{
Console.WriteLine("{0} {1} Degree: {2}",
s.LastName,
s.FirstName,
s.Degree);
}
}
}