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Select Method in LINQ MeThods Archives - OctopusCodes https://octopuscodes.com/tag/select-method-in-linq-methods/ Fri, 14 Apr 2023 04:26:23 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://octopuscodes.com/wp-content/uploads/2022/12/cropped-logo-80x80-1-32x32.png Select Method in LINQ MeThods Archives - OctopusCodes https://octopuscodes.com/tag/select-method-in-linq-methods/ 32 32 Select Method in LINQ MeThods in Entity Framework Core https://octopuscodes.com/net-core-tutorial/entity-framework-core-tutorial/select-method-in-linq-methods-in-entity-framework-core/ Thu, 13 Apr 2023 02:55:16 +0000 https://octopuscodes.com/?p=1658 Use Select method allows us to get the properties of the object and returns a new list of elements of a database using Entity Framework Core. using EntityFrameworkCore_ConsoleApp.Models; namespace EntityFrameworkCore_ConsoleApp …

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Use Select method allows us to get the properties of the object and returns a new list of elements of a database using Entity Framework Core.

using EntityFrameworkCore_ConsoleApp.Models;

namespace EntityFrameworkCore_ConsoleApp
{
    public class Program
    {
        static void Main(string[] args)
        {
            using (var databaseContext = new DatabaseContext())
            {
                var products = databaseContext.Products.Select(product => new
                {
                    Id = product.Id,
                    Name = product.Name,
                    Price = product.Price
                }).ToList();
                products.ForEach(product =>
                {
                    Console.WriteLine("Id: " + product.Id);
                    Console.WriteLine("Name: " + product.Name);
                    Console.WriteLine("Price: " + product.Price);
                    Console.WriteLine("---------------------");
                });
            }
        }
    }
}
Id: 9
Name: Tivi 1
Price: 10
---------------------
Id: 10
Name: Tivi 2
Price: 5
---------------------
Id: 11
Name: Tivi 3
Price: 20
---------------------
Id: 12
Name: Laptop 1
Price: 15
---------------------
Id: 13
Name: Laptop 2
Price: 4
---------------------
Id: 14
Name: Computer 1
Price: 17
---------------------
Id: 15
Name: Computer 2
Price: 43
---------------------
Id: 16
Name: Computer 3
Price: 19
---------------------

You can use combination of Select method and Where method as below:

using EntityFrameworkCore_ConsoleApp.Models;

namespace EntityFrameworkCore_ConsoleApp
{
    public class Program
    {
        static void Main(string[] args)
        {
            using (var databaseContext = new DatabaseContext())
            {
                var products = databaseContext.Products.Where(product => product.Status == true).Select(product => new
                {
                    Id = product.Id,
                    Name = product.Name,
                    Price = product.Price
                }).ToList();
                products.ForEach(product =>
                {
                    Console.WriteLine("Id: " + product.Id);
                    Console.WriteLine("Name: " + product.Name);
                    Console.WriteLine("Price: " + product.Price);
                    Console.WriteLine("---------------------");
                });
            }
        }
    }
}
Id: 9
Name: Tivi 1
Price: 10
---------------------
Id: 12
Name: Laptop 1
Price: 15
---------------------
Id: 14
Name: Computer 1
Price: 17
---------------------
Id: 16
Name: Computer 3
Price: 19
---------------------

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