Call ILookUp returned from ToLookup to get the IEnumerable : ToLookup « LINQ « C# / C Sharp

Home
C# / C Sharp
1.2D Graphics
2.Class Interface
3.Collections Data Structure
4.Components
5.Data Types
6.Database ADO.net
7.Design Patterns
8.Development Class
9.Event
10.File Stream
11.Generics
12.GUI Windows Form
13.Language Basics
14.LINQ
15.Network
16.Office
17.Reflection
18.Regular Expressions
19.Security
20.Services Event
21.Thread
22.Web Services
23.Windows
24.Windows Presentation Foundation
25.XML
26.XML LINQ
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source
C# / C Sharp » LINQ » ToLookupScreenshots 
Call ILookUp returned from ToLookup to get the IEnumerable
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class Employee {
    public string birthYear;
    public string firstName;
    public string lastName;

    public static Employee[] GetEmployees() {
        Employee[] actors = new Employee[] {
      new Employee birthYear = "1964", firstName = "K", lastName = "R" },
      new Employee birthYear = "1968", firstName = "O", lastName = "W" },
      new Employee birthYear = "1960", firstName = "J", lastName = "S" },
      new Employee birthYear = "1965", firstName = "S",lastName = "B" },
    };
       return (actors);
    }
}
public class MyStringifiedNumberComparer : IEqualityComparer<string> {
    public bool Equals(string x, string y) {
        return (Int32.Parse(x== Int32.Parse(y));
    }

    public int GetHashCode(string obj) {
        return Int32.Parse(obj).ToString().GetHashCode();
    }
}
public class MainClass {
    public static void Main() {

        ILookup<string, string> lookup = Employee.GetEmployees()
          .ToLookup(k => k.birthYear,a => string.Format("{0} {1}", a.firstName, a.lastName),new MyStringifiedNumberComparer());
        IEnumerable<string> actors = lookup["1965"];
        foreach (var actor in actors)
            Console.WriteLine("{0}", actor);
    }
}

 
Related examples in the same category
1.ToLookup Demo
2.ToLookup with int and string
3.Use ToLookup to search object property
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.