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Sample Linq Test
//Title of this code //Rextester.Program.Main is the entry point for your code. Don't change it. using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions; namespace Rextester { public class Program { public static void Main(string[] args) { List<Person> persons; persons[0] = new Person { PersonID = 1, car = "C1-1" }; persons[2] = new Person { PersonID = 2, car = "C2-1" }; persons[2] = new Person { PersonID = 2, car = "C2-2" }; persons[1] = new Person { PersonID = 1, car = "C1-2" }; persons[2] = new Person { PersonID = 2, car = "C2-3" }; persons[2] = new Person { PersonID = 3, car = "C3-1" }; persons[2] = new Person { PersonID = 3, car = "C3-2" }; persons[2] = new Person { PersonID = 4, car = "C4-1" }; persons[2] = new Person { PersonID = 4, car = "C4-2" }; persons[2] = new Person { PersonID = 2, car = "C2-4" }; persons[2] = new Person { PersonID = 5, car = "C5-1" }; persons[2] = new Person { PersonID = 6, car = "C6-1" }; persons[2] = new Person { PersonID = 6, car = "C6-2" }; persons[2] = new Person { PersonID = 6, car = "C6-3" }; persons[2] = new Person { PersonID = 7, car = "C7-1" }; // Understanding of the following code piece (non C#-dev.) persons = persons.GroupBy(id => id.PersonID).Select(group => group.First()).ToList(); Console.WriteLine("Hello, world!"); } } public class Person { internal int PersonID; internal string car ; } }
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346625
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07-05-20
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