Asp.Net MVC: With Product example 1

Web.config - Add the connection string

<connectionStrings>
    <add name="ProductDBConnectionString" connectionString="Data Source=LK-PRK\SQL2012DEV;Initial Catalog=ProductDB;Integrated Security=True"
        providerName="System.Data.SqlClient" />
  </connectionStrings>

Connections.cs - in Model section

using System.Configuration;
using System.Data.SqlClient;

namespace TestStock.Models
{
    public class Connection
    {
        public static SqlConnection GetConnection()
        {
            var conn = ConfigurationManager.ConnectionStrings["ProductDBConnectionString"].ConnectionString;
            return new SqlConnection(conn);
        }
    }
}
Products.cs - in Models section

namespace TestStock.Models
{
    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public double Price { get; set; }
    }
}

ProductHelper.cs - in Model section

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;

namespace TestStock.Models
{
    public class ProductHelper
    {
        public static List<Product> GetProducts()
        {
            var conn = Connection.GetConnection();
            conn.Open();
            var cmd = new SqlCommand("SELECT * FROM Products", conn);
            SqlDataReader dr = cmd.ExecuteReader();
            var products = new List<Product>();
            while (dr.Read())
            {
                var p = new Product
                {
                    Id = int.Parse(dr.GetValue(0).ToString()),
                    Name = dr.GetValue(1).ToString(),
                    Price = double.Parse(dr.GetValue(2).ToString())
                };
                products.Add(p);
            }
            return products;
        }

        public static string AddProduct(Product product)
        {
            string message;
            try
            {
                var name = new SqlParameter("@name", product.Name);
                var price = new SqlParameter("@price", product.Price);

                var conn = Connection.GetConnection();
                conn.Open();

                var cmd = conn.CreateCommand();
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.CommandText = "AddProducts";

                cmd.Parameters.Add(name);
                cmd.Parameters.Add(price);

                cmd.ExecuteNonQuery();
                conn.Close();

                message = "Product Added !";
            }
            catch (Exception ex)
            {
                message = String.Format("Error: {0}", ex);
            }

            return message;
        }
    }
}

ProductsController - in Controller section

using System.Web.Mvc;
using TestStock.Models;

namespace TestStock.Controllers
{
    public class ProductsController : Controller
    {
        //
        // GET: /Products/

        public ActionResult Index()
        {
            var products = ProductHelper.GetProducts();
            return View(products);
        }

    }
}

Index - from Products Controller

@using TestStock.Models
@model List<Product>

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <div>
        <table>
            <tr>
                <td>Name: </td>
                <td><input id="txtProductName"/></td>
            </tr>
            <tr>
                <td>Price: </td>
                <td><input id="txtProductPrice" /></td>
            </tr>
            <tr>
                <td></td>
                <td><button id="btnAddProduct" onclick="AddProduct()">Add Product</button></td>
            </tr>
        </table>
        <br/>
        <table>
            <tr>
                <td>Id</td>
                <td>Name</td>
                <td>Price</td>
            </tr>
            @foreach (Product t in Model)
            {
                <tr>
                    <td>@t.Id</td>
                    <td>@t.Name</td>
                    <td>@t.Price</td>
                </tr>
            }
        </table>
    </div>
</body>
</html>




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