static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var teacher = new Teacher {
Name = "Susan Smith", School = "Custer Baker Middle School"
};
var firefighter = new Firefighter {
Name = "Joel Clark", FireStation = "Midtown"
};
var retired = new Retired {
Name = "Joan Collins", FullTimeHobby = "Scapbooking"
};
context.People.AddObject(teacher);
context.People.AddObject(firefighter);
context.People.AddObject(retired);
context.SaveChanges();
firefighter.Hero = teacher;
teacher.Hero = retired;
retired.Hero = firefighter;
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
context.ContextOptions.LazyLoadingEnabled = true;
foreach (var person in context.People)
{
if (person.Hero != null)
{
Console.WriteLine("\n{0}, Hero is: {1}", person.Name, person.Hero.Name);
}
else
{
Console.WriteLine("{0}", person.Name);
}
if (person is Firefighter)
{
Console.WriteLine("Firefighter at station {0}", ((Firefighter)person).FireStation);
}
else if (person is Teacher)
{
Console.WriteLine("Teacher at {0}", ((Teacher)person).School);
}
else if (person is Retired)
{
Console.WriteLine("Retired, hobby is {0}", ((Retired)person).FullTimeHobby);
}
Console.WriteLine("Fans:");
foreach (var fan in person.Fans)
{
Console.WriteLine("\t{0}", fan.Name);
}
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
/// <summary>
/// Create a new Firefighter object.
/// </summary>
/// <param name="personId">Initial value of the PersonId property.</param>
/// <param name="name">Initial value of the Name property.</param>
public static Firefighter CreateFirefighter(global::System.Int32 personId, global::System.String name)
{
Firefighter firefighter = new Firefighter();
firefighter.PersonId = personId;
firefighter.Name = name;
return(firefighter);
}