static void Main(string[] args)
{
var pets = new SnooperList <Pet>(new List <Pet>()
{
new Pet("Rudolph the Goldfish", new AnimalKind("Goldfish", AnimalType.Fish, eyes: 2, legs: 0)),
new Pet("Hugo", new AnimalKind("Dog", AnimalType.Bird)),
new Pet("Kaptajn Kaper", new AnimalKind("Parrot", AnimalType.Bird)),
new Pet("Mr. Hammer Jr.", new AnimalKind("Millipede", AnimalType.Fish, eyes: 2, legs: 1000)),
new Pet("Ms. Silk", new AnimalKind("Spider", AnimalType.Bird, eyes: 6, legs: 8))
});
var people = new SnooperList <Person>(new List <Person>()
{
new Person("Anders And", 1934),
new Person("Mr. Hammer", 1975, pets[3]),
new Person("Sørøver John", 1969, pets[2]),
new Person("Bent Tonse", 1973, pets[0]),
new Person("Fyrst Walter", 1965),
new Person("Gentleman Finn", 1972, pets[4]),
new Person("Newton Dynamose", 1657)
});
// Register handlers, so we will know when the lists are enumerated
pets.Enumerated += (s, e) => Console.WriteLine("*** Pets enumerated ***");
people.Enumerated += (s, e) => Console.WriteLine("*** People enumerated ***");
Console.WriteLine("Before calling any LINQ methods");
var query = pets.Where(pet => pet.Kind.Legs > 2);
Console.WriteLine("After Where");
query = query.OrderBy(pet => pet.Name);
Console.WriteLine("After OrderBy");
var query2 = query.Select(pet => pet.Kind.Name);
Console.WriteLine("After Select");
int items = query2.Count();
Console.WriteLine("After Count");
foreach (var item in query)
{
Console.WriteLine(item.Name);
}
Console.ReadKey();
}
static void Main(string[] args)
{
var pets = new SnooperList <Pet>(new List <Pet>()
{
new Pet("Rudolph the Goldfish", new AnimalKind("Goldfish", AnimalType.Fish, eyes: 2, legs: 0)),
new Pet("Hugo", new AnimalKind("Dog", AnimalType.Bird)),
new Pet("Kaptajn Kaper", new AnimalKind("Parrot", AnimalType.Bird)),
new Pet("Mr. Hammer Jr.", new AnimalKind("Millipede", AnimalType.Fish, eyes: 2, legs: 1000)),
new Pet("Ms. Silk", new AnimalKind("Spider", AnimalType.Bird, eyes: 6, legs: 8))
});
var people = new SnooperList <Person>(new List <Person>()
{
new Person("Anders And", 1934),
new Person("Mr. Hammer", 1975, pets[3]),
new Person("Sørøver John", 1969, pets[2]),
new Person("Bent Tonse", 1973, pets[0]),
new Person("Fyrst Walter", 1965),
new Person("Gentleman Finn", 1972, pets[4]),
new Person("Newton Dynamose", 1657)
});
// Register handlers, so we will know when the lists are enumerated
pets.Enumerated += (s, e) => Console.WriteLine("*** Pets enumerated ***");
people.Enumerated += (s, e) => Console.WriteLine("*** People enumerated ***");
Console.WriteLine("Before calling any LINQ methods");
var query = pets.Where(pet => pet.Kind.Legs > 2);
Console.WriteLine("After Where");
query = query.OrderBy(pet => pet.Name);
Console.WriteLine("After OrderBy");
var query2 = query.Select(pet => pet.Kind.Name);
Console.WriteLine("After Select");
int items = query2.Count();
Console.WriteLine("After Count");
foreach (var item in query)
{
Console.WriteLine(item.Name);
}
// LINQ - Modul#4 slide 35 opgaver
var born72 =
from item in people
where item.BirthYear == 1972
select item.Name;
Console.WriteLine("Født i 1972:");
foreach (var match in born72)
{
Console.WriteLine(match);
}
var all =
from item in people
orderby item.Name descending
select item.Name;
Console.WriteLine("Alle sorteret efter navn - omvendt:");
foreach (var match in all)
{
Console.WriteLine(match);
}
var fishpet =
from item in pets
where item.Kind.Type == AnimalType.Fish
select item.Name;
Console.WriteLine("Kæledyrnavne - fisk:");
foreach (var match in fishpet)
{
Console.WriteLine(match);
}
var pets2eyes =
from item in people
where item.Pet != null
where item.Pet.Kind.Eyes >= 2
select item.Name;
Console.WriteLine("Alle personer med kæledyr med mere end 2 øjne:");
foreach (var match in pets2eyes)
{
Console.WriteLine(match);
}
var peoplewithpets =
from item in people
where item.Pet != null
orderby item.Pet.Kind.Type, item.Name
select item.Name;
Console.WriteLine("Alle personer med kæledyr sorteret efter kæledyr herefter personnavn:");
foreach (var match in peoplewithpets)
{
Console.WriteLine(match);
}
var peoplegrouppets =
from item in people
where item.Pet != null
group item by item.Pet.Kind.Type;
Console.WriteLine("Alle personer med kæledyr grupperet efter kæledyrstype:");
foreach (var match in peoplegrouppets)
{
foreach (var name in match)
{
Console.WriteLine(name.Name + " : " + name.Pet.Kind.Type);
}
}
var petsoffish =
from item in pets
where (item.Kind.Type == AnimalType.Fish) && (item.Kind.Legs > 0)
orderby item.Kind.Legs
select item.Name;
Console.WriteLine("Alle kæledyr der er fisk, og som har flere end 0 ben:");
foreach (var match in petsoffish)
{
Console.WriteLine(match);
}
var personswithpets =
from item in people
where item.Pet != null
join pitem in pets
on item.Pet.Name equals pitem.Name
select new
{
pername = item.Name,
petname = pitem.Name
};
Console.WriteLine("Alle personer med kæledyr:");
foreach (var match in personswithpets)
{
Console.WriteLine("Personnavn: " + match.pername + " (" + match.petname + ")");
}
MainAsync().Wait(); // Hvis afvikles uden Wait udføres Delay asynkront (samtidigt)
Console.WriteLine("After MainAsync!");
Console.ReadKey();
}
static void Main(string[] args)
{
// http://www.csharpstar.com/async-await-keyword-csharp/
//////////////////////////Test Async...
Console.WriteLine("Async started...");
Task <string> value = MainAsync();
Console.WriteLine("Async ended...press a key to continue...");
Console.ReadKey();
///////////////////////////////////////////////////////////
var pets = new SnooperList <Pet>(new List <Pet>()
{
new Pet("Rudolph the Goldfish", new AnimalKind("Goldfish", AnimalType.Fish, eyes: 2, legs: 0)),
new Pet("Hugo", new AnimalKind("Dog", AnimalType.Bird)),
new Pet("Kaptajn Kaper", new AnimalKind("Parrot", AnimalType.Bird)),
new Pet("Mr. Hammer Jr.", new AnimalKind("Millipede", AnimalType.Fish, eyes: 2, legs: 1000)),
new Pet("Ms. Silk", new AnimalKind("Spider", AnimalType.Bird, eyes: 6, legs: 8))
});
var people = new SnooperList <Person>(new List <Person>()
{
new Person("Anders And", 1934),
new Person("Mr. Hammer", 1975, pets[3]),
new Person("Sørøver John", 1969, pets[2]),
new Person("Bent Tonse", 1973, pets[0]),
new Person("Fyrst Walter", 1965),
new Person("Gentleman Finn", 1972, pets[4]),
new Person("Newton Dynamose", 1657)
});
// Register handlers, so we will know when the lists are enumerated
pets.Enumerated += (s, e) => Console.WriteLine("*** Pets enumerated ***");
people.Enumerated += (s, e) => Console.WriteLine("*** People enumerated ***");
Console.WriteLine("Before calling any LINQ methods");
var query = pets.Where(pet => pet.Kind.Legs > 2);
Console.WriteLine("After Where");
query = query.OrderBy(pet => pet.Name);
Console.WriteLine("After OrderBy");
var query2 = query.Select(pet => pet.Kind.Name);
Console.WriteLine("After Select");
int items = query2.Count();
Console.WriteLine("After Count");
foreach (var item in query)
{
Console.WriteLine(item.Name);
}
Console.ReadKey();
//////////////////////// find Person born in 1972
var findPerson1972 = from p in people
where p.BirthYear.ToString() == "1972"
select p;
foreach (var item in findPerson1972)
{
Console.WriteLine(item.Name);
}
Console.ReadKey();
//////////////////////// find all Persons
var findAllPersons = from p in people
orderby p.Name //descending
select p;
foreach (var item in findAllPersons)
{
Console.WriteLine(item.Name);
}
Console.ReadKey();
//////////////////////// find Fish Pets
var findFishPets = from p in pets
where p.Kind.Type == AnimalType.Fish
select p;
foreach (var item in findFishPets)
{
Console.WriteLine(item.Kind.Name + " Type: " + item.Kind.Type);
}
Console.ReadKey();
//////////////////////// find Pets with more than 2 eyes
var findPetsWithMoreThan2Eyes = from p in people
where (p.Pet != null) && p.Pet.Kind.Eyes > 2
select p;
foreach (var item in findPetsWithMoreThan2Eyes)
{
Console.WriteLine(item.Name + " Pet: " + item.Pet.Name + " Eyes: " + item.Pet.Kind.Eyes);
}
Console.ReadKey();
//////////////////////// Sort by Pet type and Person name
var findSortedByPetTypeAndPersons = from p in people
where p.Pet != null
orderby p.Pet.Kind.Type, p.Name
select p;
foreach (var item in findSortedByPetTypeAndPersons)
{
Console.WriteLine("Pet type: " + item.Pet.Kind.Type + " Owner: " + item.Name);
}
Console.ReadKey();
//////////////////////// Group by Pet type
var findPetGroups = from p in people
where p.Pet != null
group p by p.Pet.Kind.Type into g
select new { PetType = g.Key, Name = g };
foreach (var item in findPetGroups)
{
Console.WriteLine("Pet type: " + item.PetType);
foreach (var person in item.Name)
{
Console.WriteLine("Person Name: " + person.Name);
}
}
Console.ReadKey();
}
