static void Main(string[] args)
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter6.weborder");
}
using (var context = new EFRecipesEntities())
{
var order = new WebOrder {
CustomerName = "Jim Allen", OrderDate = DateTime.Parse("5/3/2009"), IsDeleted = false, Amount = 200
};
context.WebOrders.AddObject(order);
order = new WebOrder {
CustomerName = "John Stevens", OrderDate = DateTime.Parse("1/1/2006"), IsDeleted = false, Amount = 400
};
context.WebOrders.AddObject(order);
order = new WebOrder {
CustomerName = "Russel Smith", OrderDate = DateTime.Parse("1/3/2006"), IsDeleted = true, Amount = 500
};
context.WebOrders.AddObject(order);
order = new WebOrder {
CustomerName = "Mike Hammer", OrderDate = DateTime.Parse("3/6/2006"), IsDeleted = true, Amount = 1800
};
context.WebOrders.AddObject(order);
order = new WebOrder {
CustomerName = "Steve Jones", OrderDate = DateTime.Parse("1/1/2003"), IsDeleted = true, Amount = 600
};
context.WebOrders.AddObject(order);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("Orders");
Console.WriteLine("======");
foreach (var order in context.WebOrders)
{
Console.WriteLine("\nCustomer: {0}", order.CustomerName);
Console.WriteLine("OrderDate: {0}", order.OrderDate.ToShortDateString());
Console.WriteLine("Is Deleted: {0}", order.IsDeleted.ToString());
Console.WriteLine("Amount: {0}", order.Amount.ToString("C"));
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var park = new Park {
Name = "11th Street Park", Address = "801 11th Street", City = "Aledo", State = "TX", ZIPCode = "76106"
};
var loc = new Location {
Address = "501 Main", City = "Weatherford", State = "TX", ZIPCode = "76201"
};
park.Office = loc;
context.Locations.AddObject(park);
park = new Park {
Name = "Overland Park", Address = "101 High Drive", City = "Springtown", State = "TX", ZIPCode = "76081"
};
loc = new Location {
Address = "8705 Range Lane", City = "Springtown", State = "TX", ZIPCode = "76081"
};
park.Office = loc;
context.Locations.AddObject(park);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
context.ContextOptions.LazyLoadingEnabled = true;
Console.WriteLine("-- All Locations -- ");
foreach (var l in context.Locations)
{
Console.WriteLine("{0}, {1}, {2} {3}", l.Address, l.City, l.State, l.ZIPCode);
}
Console.WriteLine("--- Parks ---");
foreach (var p in context.Locations.OfType <Park>())
{
Console.WriteLine("{0} is at {1} in {2}", p.Name, p.Address, p.City);
Console.WriteLine("\tOffice: {0}, {1}, {2} {3}", p.Office.Address, p.Office.City, p.Office.State, p.Office.ZIPCode);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
context.ParkingTickets.AddObject(new ParkingTicket {
Amount = 132.0M, Paid = false
});
context.ParkingTickets.AddObject(new ParkingTicket {
Amount = 255.0M, Paid = false
});
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
foreach (var ticket in context.ParkingTickets)
{
Console.WriteLine("Ticket: {0}", ticket.TicketId);
Console.WriteLine("Date: {0}", ticket.CreateDate.ToShortDateString());
Console.WriteLine("Amount: {0}", ticket.Amount.ToString("C"));
Console.WriteLine("Paid: {0}", ticket.PaidDate.HasValue ? ticket.PaidDate.Value.ToShortDateString() : "Not Paid");
Console.WriteLine();
ticket.Paid = true; // just paid ticket!
}
// save all those Paid flags
context.SaveChanges();
foreach (var ticket in context.ParkingTickets)
{
Console.WriteLine("Ticket: {0}", ticket.TicketId);
Console.WriteLine("Date: {0}", ticket.CreateDate.ToShortDateString());
Console.WriteLine("Amount: {0}", ticket.Amount.ToString("C"));
Console.WriteLine("Paid: {0}", ticket.PaidDate.HasValue ? ticket.PaidDate.Value.ToShortDateString() : "Not Paid");
Console.WriteLine();
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var worker1 = new Worker {
Name = "John Kearney"
};
var worker2 = new Worker {
Name = "Nancy Roberts"
};
var worker3 = new Worker {
Name = "Karla Gibbons"
};
context.Accidents.AddObject(new Accident {
Description = "Cuts and contusions", Severity = 3, Worker = worker1
});
context.Accidents.AddObject(new Accident {
Description = "Broken foot", Severity = 4, Worker = worker1
});
context.Accidents.AddObject(new Accident {
Description = "Fall, no injuries", Severity = 1, Worker = worker2
});
context.Accidents.AddObject(new Accident {
Description = "Minor burn", Severity = 3, Worker = worker2
});
context.Accidents.AddObject(new Accident {
Description = "Back strain", Severity = 2, Worker = worker3
});
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
context.ContextOptions.LazyLoadingEnabled = false;
var query = from w in context.Workers
select new
{
Worker = w,
Accidents = w.Accidents.Where(a => a.Severity > 2)
};
query.ToList();
var workers = query.Select(r => r.Worker);
Console.WriteLine("Workers with serious accidents...");
foreach (var worker in workers)
{
Console.WriteLine("{0} had the following accidents", worker.Name);
if (worker.Accidents.Count == 0)
{
Console.WriteLine("\t--None--");
}
foreach (var accident in worker.Accidents)
{
Console.WriteLine("\t{0}, severity: {1}", accident.Description, accident.Severity.ToString());
}
}
}
Console.WriteLine();
using (var context = new EFRecipesEntities())
{
context.ContextOptions.LazyLoadingEnabled = false;
foreach (var worker in context.Workers)
{
Console.WriteLine("{0} had the following accidents", worker.Name);
var accidents = worker.Accidents.CreateSourceQuery().Where(a => a.Severity > 2);
worker.Accidents.Attach(accidents);
if (worker.Accidents.Count == 0)
{
Console.WriteLine("\t--None--");
}
foreach (var accident in accidents)
{
Console.WriteLine("\t{0}, severity: {1}", accident.Description, accident.Severity.ToString());
}
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}