using EntityFrameworkCore_ConsoleApp.Models;

namespace EntityFrameworkCore_ConsoleApp
{
    public class Program
    {
        static void Main(string[] args)
        {
            using (var databaseContext = new DatabaseContext())
            {
                var product = databaseContext.Products.Find(9);
                if (product != null)
                {
                    Console.WriteLine("Id: " + product.Id);
                    Console.WriteLine("Name: " + product.Name);
                    Console.WriteLine("Price: " + product.Price);
                    Console.WriteLine("Quantity: " + product.Quantity);
                    Console.WriteLine("Description: " + product.Description);
                    Console.WriteLine("Status: " + product.Status);
                    Console.WriteLine("Photo: " + product.Photo);
                    Console.WriteLine("Created: " + product.Created.ToString("dd/MM/yyyy"));
                    Console.WriteLine("Category Id: " + product.CategoryId);
                }
                else
                {
                    Console.WriteLine("Not Found");
                }
            }
        }
    }
}

Output

Id: 9
Name: Tivi 1
Price: 10
Quantity: 15
Description: Description 1
Status: True
Photo: photo1.gif
Created: 20/10/2023
Category Id: 1

Finding an entity by Composite Primary Key:

using EntityFrameworkCore_ConsoleApp.Models;

namespace EntityFrameworkCore_ConsoleApp
{
    public class Program
    {
        static void Main(string[] args)
        {
            using (var databaseContext = new DatabaseContext())
            {
                var invoiceDetail = databaseContext.InvoiceDetails.Find(1, 9);
                if (invoiceDetail != null)
                {
                    Console.WriteLine("Invoice Id: " + invoiceDetail.InvoiceId);
                    Console.WriteLine("Product Id: " + invoiceDetail.ProductId);
                    Console.WriteLine("Price: " + invoiceDetail.Price);
                    Console.WriteLine("Quantity: " + invoiceDetail.Quantity);
                }
                else
                {
                    Console.WriteLine("Not Found");
                }
            }
        }
    }
}

Output

Invoice Id: 1
Product Id: 9
Price: 4.5
Quantity: 20

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