PhiHuyHoang

static void Main(string[] args)
{
  List<Post> Facebook = new List<Post>();
  Facebook.Add(new Post { status = "status A", timestamp = DateTime.Now });
  Facebook.Add(new Post { status = "status B", timestamp = DateTime.Now });
  Facebook.Add(new Post { status = "status C", timestamp = DateTime.Now });
  foreach(Post p in Facebook)
  {
    Console.WriteLine($"Status: {p.status} - Datetime: {p.timestamp}");
  }

PhiHuyHoang

class FacebookWall
{
  private List<Post> facebook;
  public FacebookWall()
  {
    facebook = new List<Post>();
  }
  public void Add(Post npost)
  {
    facebook.Add(npost);

PhiHuyHoang

static void Main(string[] args)
{
  FacebookWall Facebook = new FacebookWall();
  Facebook.Add(new Post { status = "status A", timestamp = DateTime.Now });
  Facebook.Add(new Post { status = "status B", timestamp = DateTime.Now });
  Facebook.Add(new Post { status = "status C", timestamp = DateTime.Now });
  foreach(Post p in Facebook)
  {
    Console.WriteLine($"Status: {p.status} - Datetime: {p.timestamp}");
  }

PhiHuyHoang

class FacebookWall: IEnumerable<Post>
{
  private List<Post> facebook;
  public FacebookWall()
  {
    facebook = new List<Post>();
  }
  public void Add(Post npost)
  {
    facebook.Add(npost);

PhiHuyHoang

    public static class ConsoleExtension
    {
        public static void ToConsole<T>(this IEnumerable<T> s, string header)
        {
            Console.WriteLine($"*********BEGIN {header}**************");
            foreach (T item in s)
            {
                Console.WriteLine(item);
            }
            Console.WriteLine($"*********END {header}**************");

PhiHuyHoang

 public static class ConsoleExtension
    {
        public static void ToConsole<T>(this IEnumerable<T> s, string header)
        {
            Console.WriteLine($"*********BEGIN {header}**************");
            foreach (T item in s)
            {
                Console.WriteLine(item);
            }
            Console.WriteLine($"*********END {header}**************");

PhiHuyHoang

<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippets  xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
    <CodeSnippet Format="1.0.0">
        <Header>
            <Title>cr</Title>
            <Shortcut>cr</Shortcut>
            <Description>Code snippet for Console.ReadLine</Description>
            <Author>Whoever you want it to be</Author>
            <SnippetTypes>
                <SnippetType>Expansion</SnippetType>

PhiHuyHoang

 public static class ConsoleExtension
    {
        public static void ToConsole<T>(this IEnumerable<T> s, string header)
        {
            Console.WriteLine($"*********BEGIN {header}**************");
            foreach (T item in s)
            {
                Console.WriteLine(item);
            }
            Console.WriteLine($"*********END {header}**************");

PhiHuyHoang

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace linq_ORM_entities
{
    public static class CustomExtentions

PhiHuyHoang

public interface Girl
    {
        void check();
    }
    class Vietnamese : Girl
    {
        public void check()
        {
            Console.WriteLine("Girl from Vietnam");
        }