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OperatorsTests.cs
65 lines (54 loc) · 1.92 KB
/
OperatorsTests.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace LINQPerfTest
{
class OperatorsTests
{
class Person
{
public string Name { get; set; }
}
class Pet
{
public string Name { get; set; }
public Person Owner { get; set; }
}
public static void JoinEx1()
{
Person magnus = new Person { Name = "Hedlund, Magnus" };
Person terry = new Person { Name = "Adams, Terry" };
Person charlotte = new Person { Name = "Weiss, Charlotte" };
Pet barley = new Pet { Name = "Barley", Owner = terry };
Pet boots = new Pet { Name = "Boots", Owner = terry };
Pet whiskers = new Pet { Name = "Whiskers", Owner = charlotte };
Pet daisy = new Pet { Name = "Daisy", Owner = magnus };
List<Person> people = new List<Person> { magnus, terry, charlotte };
List<Pet> pets = new List<Pet> { barley, boots, whiskers, daisy };
// Create a list of Person-Pet pairs where
// each element is an anonymous type that contains a
// Pet's name and the name of the Person that owns the Pet.
var query =
people.Join(pets,
person => person,
pet => pet.Owner,
(person1, pet1) =>
new { OwnerName = person1.Name, Pet = pet1.Name });
foreach (var obj in query)
{
Console.WriteLine(
"{0} - {1}",
obj.OwnerName,
obj.Pet);
}
}
/*
This code produces the following output:
Hedlund, Magnus - Daisy
Adams, Terry - Barley
Adams, Terry - Boots
Weiss, Charlotte - Whiskers
*/
}
}