Use join key word : Join « 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 » JoinScreenshots 
Use join key word
 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using System.Reflection;

class Person {
    int _id;
    int _idRole;
    string _lastName;
    string _firstName;

    public int ID {
        get return _id; }
        set _id = value; }
    }

    public int IDRole {
        get return _idRole; }
        set _idRole = value; }
    }

    public string LastName {
        get return _lastName; }
        set _lastName = value; }
    }

    public string FirstName {
        get return _firstName; }
        set _firstName = value; }
    }
}
class Role {
    int _id;
    string role;

    public int ID {
        get return _id; }
        set _id = value; }
    }

    public string Role {
        get return role; }
        set role = value; }
    }
}
class Program {
    static void Main(string[] args) {
        List<Person> people = new List<Person> {
              new Person  ID = 1, IDRole = 1, LastName = "A", FirstName = "B"},
              new Person  ID = 2, IDRole = 2, LastName = "G", FirstName = "T"},
              new Person  ID = 3, IDRole = 2, LastName = "G", FirstName = "M"},
              new Person  ID = 4, IDRole = 3, LastName = "C", FirstName = "G"}
            };
        List<Role> roles = new List<Role> {
              new Role  ID = 1, Role = "Manager" },
              new Role  ID = 2, Role = "Developer" }
            };
        var query = from p in people
                    join r in roles on p.IDRole equals r.ID
                    select p;
    }
}

 
Related examples in the same category
1.Join two object lists
2.Join three object list
3.Use Join on
4.Join Operator
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.