MVC model

//CustomerController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using CPRG102.Mod4.ModelDemo.Models;

// For more information on enabling MVC for empty projects, visit http://go.microsoft.com/fwlink/?LinkID=397860

namespace CPRG102.Mod4.ModelDemo.Controllers
{
    public class CustomerController : Controller
    {
        // GET: /<controller>/
        public IActionResult Index()
        {
            var customers = CustomerManager.Customers;
            return View(customers);  //customers from model/CustomerManager/list<customers>
        }

        //the GET method:  Customer/Create
        public IActionResult Create()
        {
            return View();
        }

        [HttpPost]
        public IActionResult Create(Customer customer)
        {
            //add the customer to the system
            CustomerManager.Add(customer);
            return RedirectToAction("Index"); //add a new customer, display table again
        }
    }
}

-----------------------------------------------------------------

//~/views/customer/index.cshtml

@model List<CPRG102.Mod4.ModelDemo.Models.Customer>

@*

    <ul>

        @foreach (var cust in Model)

        {

            <li>

                @cust.ToString()

            </li>

        }

    </ul>

*@ 

<h4>Customer Lookup</h4>

<table class="table">

    <tr>

        <th>ID</th>

        <th>First Name</th>

        <th>Last Name</th>

        <th>Phone</th>

    </tr>

    @foreach (var cust in Model)

    {

        <tr>

            <td>@cust.Id</td>

            <td>@cust.FirstName</td>

            <td>@cust.LastName</td>

            <td>@cust.Phone</td>

        </tr>

    }

</table>

<a href="~/Customer/Create">Create New Customer</a>

--------------------------------------------------------------------

//~/views/customer/Create.cshtml

<h4>Add Customer</h4>

<!-- Post back to the same controller method-->

<form method="post">

<table class="table">

    <tr>

        <td>ID:</td>

        <td><input type="text" name="Id" /></td>

    </tr>

    <tr>

        <td>First Name:</td>

        <td><input type="text" name="FirstName" /></td>

    </tr>

    <tr>

        <td>Last Name:</td>

        <td><input type="text" name="LastName" /></td>

    </tr>

    <tr>

        <td>Phone:</td>

        <td><input type="text" name="Phone" /></td>

    </tr>

    <tr>

        <td colspan="2"><input type="submit" value="Submit" /></td>

    </tr>

</table>

</form>

------------------------------------------------------------

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace CPRG102.Mod4.ModelDemo.Models

{

    public class Customer

    {

        public int Id { get; set; }

        public string FirstName { get; set; }

        public string LastName { get; set; }

        public string Phone { get; set; }

        public override string ToString()

        {

            return $"{FirstName} {LastName}";

        }

    }

}

--------------------------------------------------------

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace CPRG102.Mod4.ModelDemo.Models

{

    public class CustomerManager

    {

        public static List<Customer> Customers { get; private set; }

        static CustomerManager()

        {

            Customers = new List<Customer>();

            Customers.Add(new Customer { Id = 1, FirstName = "John", LastName = "Doe", Phone = "403-555-5670" });

            Customers.Add(new Customer { Id = 2, FirstName = "Jane", LastName = "Smith", Phone = "403-555-1234" });

            Customers.Add(new Customer { Id = 3, FirstName = "Ken", LastName = "Hunter", Phone = "403-555-9950" });

        }

        public static void Add(Customer customer)

        {

            Customers.Add(customer);

        }

        public static Customer Find(int id)

        {

            var cust = Customers.SingleOrDefault(c => c.Id == id);

            return cust;

        }

    }

}