static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var john = new Supervisor {
Name = "John Smith"
};
var steve = new Supervisor {
Name = "Steve Johnson"
};
var jill = new ProjectManager {
Name = "Jill Masterson", Manager = john
};
var karen = new ProjectManager {
Name = "Karen Carns", Manager = steve
};
var bob = new TeamLead {
Name = "Bob Richardson", Manager = karen
};
var tom = new TeamLead {
Name = "Tom Landers", Manager = jill
};
var nancy = new TeamMember {
Name = "Nancy Jones", Manager = tom
};
var stacy = new TeamMember {
Name = "Stacy Rutgers", Manager = bob
};
context.Associates.AddObject(john);
context.Associates.AddObject(steve);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("Using eSql...");
var emps = context.Associates.OfType <TeamMember>()
.Where(@"EFRecipesModel.GetProjectManager(it).Name =
@projectManager ||
EFRecipesModel.GetSupervisor(it).Name == @supervisor",
new ObjectParameter("projectManager", "Jill Masterson"),
new ObjectParameter("supervisor", "Steve Johnson"));
Console.WriteLine("Team members that report up to either");
Console.WriteLine("Project Manager Jill Masterson ");
Console.WriteLine("or Supervisor Steve Johnson");
foreach (var emp in emps)
{
Console.WriteLine("\tAssociate: {0}", emp.Name);
}
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine();
Console.WriteLine("Using LINQ...");
var emps = from e in context.Associates.OfType <TeamMember>()
where MyFunctions.GetProjectManager(e).Name ==
"Jill Masterson" ||
MyFunctions.GetSupervisor(e).Name == "Steve Johnson"
select e;
Console.WriteLine("Team members that report up to either");
Console.WriteLine("Project Manager Jill Masterson ");
Console.WriteLine("or Supervisor Steve Johnson");
foreach (var emp in emps)
{
Console.WriteLine("\tAssociate: {0}", emp.Name);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
