private static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.Database.ExecuteSqlCommand("delete from chapter13.resume");
}
}
private static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var r1 = new Resume {
Title = "C# Developer", Name = "Sally Jones"
};
r1.ResumeDetail = new ResumeDetail {
Body = "...very long resume goes here..."
};
context.Resumes.Add(r1);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
var resume = context.Resumes.Single();
Console.WriteLine("Title: {0}, Name: {1}", resume.Title, resume.Name);
// note, the ResumeDetail is not loaded until we reference it
Console.WriteLine("Body: {0}", resume.ResumeDetail.Body);
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter6.employee");
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
using (var context = new EFRecipesEntities())
{
// delete all test data
context.ExecuteStoreCommand("delete from chapter4.reservation");
context.ExecuteStoreCommand("delete from chapter4.hotel");
// insert new test data
var h1 = new Hotel {
Name = "Riverside Inn"
};
var h2 = new Hotel {
Name = "Greenville Inn"
};
context.Reservations.AddObject(new Reservation {
Name = "Robin Rosen", ReservationDate = DateTime.Parse("4/20/2010"), Rate = 99.95M, Hotel = h1
});
context.Reservations.AddObject(new Reservation {
Name = "James Marlowe", ReservationDate = DateTime.Parse("5/18/2010"), Rate = 105.00M, Hotel = h2
});
context.SaveChanges();
}
}
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var man1 = new Manager {
Name = "Jill Stevens"
};
var proj = new Project {
Name = "City Riverfront Park", Manager = man1
};
var con1 = new Contractor {
Name = "Robert Alvert", Project = proj
};
var con2 = new Contractor {
Name = "Alan Jones", Project = proj
};
var con3 = new Contractor {
Name = "Nancy Roberts", Project = proj
};
context.Projects.AddObject(proj);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
var project = context.Projects.Include("Manager").First();
if (project.ManagerReference.IsLoaded)
{
Console.WriteLine("Manager entity is loaded.");
}
else
{
Console.WriteLine("Manager entity is NOT loaded.");
}
if (project.Contractors.IsLoaded)
{
Console.WriteLine("Contractors are loaded.");
}
else
{
Console.WriteLine("Contractors are NOT loaded.");
}
Console.WriteLine("Calling project.Contractors.Load()...");
project.Contractors.Load();
if (project.Contractors.IsLoaded)
{
Console.WriteLine("Contractors are now loaded.");
}
else
{
Console.WriteLine("Contractors failed to load.");
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
public void Update(Client client)
{
using (var context = new EFRecipesEntities())
{
context.Entry(client).State = EntityState.Modified;
context.SaveChanges();
}
}
public Client GetClient()
{
using (var context = new EFRecipesEntities())
{
context.Configuration.LazyLoadingEnabled = false;
return(context.Clients.Single());
}
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter3.book");
context.ExecuteStoreCommand("delete from chapter3.category");
}
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter2.retail");
context.ExecuteStoreCommand("delete from chapter2.eCommerce");
context.ExecuteStoreCommand("delete from chapter2.business");
}
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter5.contractor");
context.ExecuteStoreCommand("delete from chapter5.project");
context.ExecuteStoreCommand("delete from chapter5.manager");
}
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter15.friend");
context.ExecuteStoreCommand("delete from chapter15.residence");
context.ExecuteStoreCommand("delete from chapter15.relative");
}
}
public void Update(Client client)
{
using (var context = new EFRecipesEntities())
{
context.Clients.Attach(client);
context.ObjectStateManager.ChangeObjectState(client, EntityState.Modified);
context.SaveChanges();
}
}
static void Cleanup()
{
using (var context = new EFRecipesEntities())
{
context.ExecuteStoreCommand("delete from chapter11.[order]");
// we're re-using customer, so we need to delete from invoice as well!
context.ExecuteStoreCommand("delete from chapter11.invoice");
context.ExecuteStoreCommand("delete from chapter11.customer");
}
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var cat1 = new Category {
Name = "Programming"
};
var cat2 = new Category {
Name = "Databases"
};
var cat3 = new Category {
Name = "Operating Systems"
};
context.Books.AddObject(new Book {
Title = "F# In Practice", Category = cat1
});
context.Books.AddObject(new Book {
Title = "The Joy of SQL", Category = cat2
});
context.Books.AddObject(new Book {
Title = "Windows 7: The Untold Story", Category = cat3
});
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("Books (using LINQ)");
List <string> cats = new List <string> {
"Programming", "Databases"
};
var books = from b in context.Books
where cats.Contains(b.Category.Name)
select b;
foreach (var book in books)
{
Console.WriteLine("'{0}' is in category: {1}", book.Title, book.Category.Name);
}
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("Books (using ESQL)");
var esql = @"select value b from Books as b
where b.Category.Name in {'Programming','Databases'}";
var books = context.CreateQuery <Book>(esql);
foreach (var book in books)
{
Console.WriteLine("'{0}' is in category: {1}", book.Title, book.Category.Name);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
public void InsertTestRecord()
{
using (var context = new EFRecipesEntities())
{
// delete previous test data
context.ExecuteStoreCommand("delete from chapter9.client");
// insert new test data
context.ExecuteStoreCommand(@"insert into chapter9.client(Name, Email) values ('Jerry Jones','*****@*****.**')");
}
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var employee1 = new Employee {
EmployeeNumber = 629, Name = "Robin Rosen", Salary = 106000M
};
var employee2 = new Employee {
EmployeeNumber = 147, Name = "Bill Moore", Salary = 62500M
};
var task1 = new Task {
Description = "Report 3rd Qtr Accounting"
};
var task2 = new Task {
Description = "Forecast 4th Qtr Sales"
};
var task3 = new Task {
Description = "Prepare Sales Tax Report"
};
// use AddObject() on the Employees entity set
context.Employees.AddObject(employee1);
// add two new tasks to the employee1's tasks
employee1.Tasks.Add(task1);
employee1.Tasks.Add(task2);
// add a task to the employee and use
// AddObject() to add the task to the object context
employee2.Tasks.Add(task3);
context.Tasks.AddObject(task3);
// persist all of these to the database
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
foreach (var employee in context.Employees)
{
Console.WriteLine("Employee: {0}'s Tasks", employee.Name);
foreach (var task in employee.Tasks)
{
Console.WriteLine("\t{0}", task.Description);
}
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var c1 = new Customer {
Name = "Jill Masters", City = "Raytown"
};
var c2 = new Customer {
Name = "Bob Meyers", City = "Austin"
};
var c3 = new Customer {
Name = "Robin Rosen", City = "Dallas"
};
var o1 = new Order {
OrderAmount = 12.99M, Customer = c1
};
var o2 = new Order {
OrderAmount = 99.39M, Customer = c2
};
var o3 = new Order {
OrderAmount = 101.29M, Customer = c3
};
context.Orders.AddObject(o1);
context.Orders.AddObject(o2);
context.Orders.AddObject(o3);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("Customers with above average total purchases");
var esql = @"select o.Customer.Name, count(o.OrderId) as TotalOrders,
Sum(o.OrderAmount) as TotalPurchases
from EFRecipesEntities.Orders as o
where o.OrderAmount >
anyelement(select value Avg(o.OrderAmount) from
EFRecipesEntities.Orders as o)
group by o.Customer.Name";
var summary = context.CreateQuery <DbDataRecord>(esql);
foreach (var item in summary)
{
Console.WriteLine("\t{0}, Total Orders: {1}, Total: {2:C}",
item["Name"], item["TotalOrders"], item["TotalPurchases"]);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var business = new Business {
Name = "Corner Dry Cleaning", LicenseNumber = "100x1"
};
context.Businesses.AddObject(business);
var retail = new Retail {
Name = "Shop and Save", LicenseNumber = "200C", Address = "101 Main", City = "Anytown", State = "TX", ZIPCode = "76106"
};
context.Businesses.AddObject(retail);
var web = new eCommerce {
Name = "BuyNow.com", LicenseNumber = "300AB", URL = "www.buynow.com"
};
context.Businesses.AddObject(web);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("\n--- All Businesses ---");
foreach (var b in context.Businesses)
{
Console.WriteLine("{0} (#{1})", b.Name, b.LicenseNumber);
}
Console.WriteLine("\n--- Retail Businesses ---");
foreach (var r in context.Businesses.OfType <Retail>())
{
Console.WriteLine("{0} (#{1})", r.Name, r.LicenseNumber);
Console.WriteLine("{0}", r.Address);
Console.WriteLine("{0}, {1} {2}", r.City, r.State, r.ZIPCode);
}
Console.WriteLine("\n--- eCommerce Businesses ---");
foreach (var e in context.Businesses.OfType <eCommerce>())
{
Console.WriteLine("{0} (#{1})", e.Name, e.LicenseNumber);
Console.WriteLine("Online address is: {0}", e.URL);
}
}
Console.WriteLine("Press <enter> to continue..");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var hourly = new HourlyEmployee {
Name = "Will Smith", Hours = 39, Rate = 7.75M
};
var salaried = new SalariedEmployee {
Name = "JoAnn Woodland", Salary = 65400M
};
var commissioned = new CommissionedEmployee {
Name = "Joel Clark", Salary = 32500M, Commission = 20M
};
context.Employees.AddObject(hourly);
context.Employees.AddObject(salaried);
context.Employees.AddObject(commissioned);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("All Employees");
Console.WriteLine("=============");
foreach (var emp in context.Employees)
{
if (emp is HourlyEmployee)
{
Console.WriteLine("{0} Hours = {1}, Rate = {2}/hour", emp.Name, ((HourlyEmployee)emp).Hours.Value.ToString(), ((HourlyEmployee)emp).Rate.Value.ToString("C"));
}
else if (emp is CommissionedEmployee)
{
Console.WriteLine("{0} Salary = {1}, Commission = {2}%", emp.Name, ((CommissionedEmployee)emp).Salary.Value.ToString("C"), ((CommissionedEmployee)emp).Commission.ToString());
}
else if (emp is SalariedEmployee)
{
Console.WriteLine("{0} Salary = {1}", emp.Name, ((SalariedEmployee)emp).Salary.Value.ToString("C"));
}
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var res1 = new FriendResidence {
Address = "123 Main", City = "Anytown", State = "CA", ZIP = "90210"
};
var res2 = new RelativeResidence {
Address = "1200 East Street", City = "Big Town", State = "KS", ZIP = "66026"
};
var f = new Friend {
Name = "Joan Roland", FriendResidence = res1
};
var r = new Relative {
Name = "Billy Miner", RelativeResidence = res2
};
context.Friends.AddObject(f);
context.Relatives.AddObject(r);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
context.ContextOptions.LazyLoadingEnabled = true;
foreach (var r in context.Residences)
{
if (r is FriendResidence)
{
Console.WriteLine("My friend {0} lives at: ", ((FriendResidence)r).Friend.Name);
}
else if (r is RelativeResidence)
{
Console.WriteLine("My relative {0} lives at: ", ((RelativeResidence)r).Relative.Name);
}
Console.WriteLine("\t{0}", r.Address);
Console.WriteLine("\t{0}, {1} {2}", r.City, r.State, r.ZIP);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
context.Athletes.AddObject(new Athlete {
Name = "Nancy Steward", Height = 167, Weight = 53
});
context.Athletes.AddObject(new Athlete {
Name = "Rob Achers", Height = 170, Weight = 77
});
context.Athletes.AddObject(new Athlete {
Name = "Chuck Sanders", Height = 171, Weight = 82
});
context.Athletes.AddObject(new Athlete {
Name = "Nancy Rodgers", Height = 166, Weight = 59
});
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
// do a delete and an update
var all = context.Athletes;
context.DeleteObject(all.Where(o => o.Name == "Nancy Steward").First());
all.Where(o => o.Name == "Rob Achers").First().Weight = 80;
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine("All Athletes");
Console.WriteLine("============");
foreach (var athlete in context.Athletes)
{
Console.WriteLine("{0} weighs {1} Kg and is {2} cm in height", athlete.Name, athlete.Weight, athlete.Height);
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var emp1 = new Employee {
Name = "Roger Smith", Salary = 108000M
};
var emp2 = new Employee {
Name = "Jane Hall", Salary = 81500M
};
context.Employees.AddObject(emp1);
context.Employees.AddObject(emp2);
context.SaveChanges();
emp1.Salary = emp1.Salary * 1.5M;
try
{
context.SaveChanges();
}
catch (Exception)
{
Console.WriteLine("Oops, tried to increase a salary too much!");
}
}
using (var context = new EFRecipesEntities())
{
Console.WriteLine();
Console.WriteLine("Employees");
foreach (var emp in context.Employees)
{
Console.WriteLine("{0} makes {1}/year", emp.Name, emp.Salary.ToString("C"));
}
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
static void RunExample()
{
using (var context = new EFRecipesEntities())
{
var r1 = new Resume {
Title = "C# Developer", Name = "Sally Jones", Body = "...very long resume goes here..."
};
context.Resumes.AddObject(r1);
context.SaveChanges();
}
using (var context = new EFRecipesEntities())
{
// using eSQL
var query = "select value Recipe8.Resume(r.ResumeId, r.Title, r.Name,'') from Resumes as r";
var result1 = context.CreateQuery <Resume>(query).Single();
Console.WriteLine("Resume body: {0}", result1.Body);
context.Resumes.MergeOption = MergeOption.OverwriteChanges;
var result2 = context.Resumes.Single();
Console.WriteLine("Resume body: {0}", result2.Body);
}
using (var context = new EFRecipesEntities())
{
// using ExecuteStoreQuery()
var result1 = context.ExecuteStoreQuery <Resume>("select ResumeId, Title, Name,'' Body from chapter13.Resume", "Resumes", MergeOption.AppendOnly).Single();
Console.WriteLine("Resume body: {0}", result1.Body);
var result2 = context.ExecuteStoreQuery <Resume>("select * from chapter13.Resume", "Resumes", MergeOption.OverwriteChanges).Single();
Console.WriteLine("Resume body: {0}", result2.Body);
}
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
}
public ReservationRepository()
{
this.context = new EFRecipesEntities();
}
public HotelRepository()
{
this.context = new EFRecipesEntities();
}
