Create new object with select statement in CSharp
Description
The following code shows how to create new object with select statement.
Example
/*w ww .j a v a2s .c om*/
using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class Contact {
public int Id;
public string Name;
public static void PublishContacts(Contact[] contacts) {
foreach (Contact c in contacts)
Console.WriteLine("Contact Id: {0} Contact: {1}", c.Id, c.Name);
}
}
public class Employee {
public int id;
public string firstName;
public string lastName;
public static ArrayList GetEmployees() {
ArrayList al = new ArrayList();
al.Add(new Employee { id = 1, firstName = "J", lastName = "R" });
al.Add(new Employee { id = 2, firstName = "W", lastName = "G" });
al.Add(new Employee { id = 3, firstName = "A", lastName = "H" });
return (al);
}
}
public class MainClass {
public static void Main() {
ArrayList alEmployees = Employee.GetEmployees();
Contact[] contacts = alEmployees
.Cast<Employee>()
.Select(e => new Contact {
Id = e.id,
Name = string.Format("{0} {1}", e.firstName, e.lastName)
})
.ToArray<Contact>();
Contact.PublishContacts(contacts);
}
}
The code above generates the following result.