// Dynamic LINQ - stef

​

// @nuget: System.Linq.Dynamic.Core

// @nuget: Z.EntityFramework.Classic

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Data.Entity;

using System.Linq.Dynamic.Core;

public class Program

{   

    public static void Main()

    {

        GenerateData();

        var context = new EntityContext();

        var query1 = context.Customers

            .Include(c => c.Location)

            .Where("c => c.CompanyName == \"ABC\" && c.Location.Name == \"test\"");

        query1.Expression.ToString().Dump();

        var config = new ParsingConfig

        {

            RenameParameterExpression = true

        };

        var query2 = context.Customers

            .Include(c => c.Location)

            .Where(config, "c => c.CompanyName == \"ABC\" && c.Location.Name == \"test\"");

        query2.Expression.ToString().Dump();

    }

    public static void GenerateData()

    {

        var list = new List<Customer>();

        list.Add(new Customer()

        {

            Name = "Terri Lee Duffy",

            CompanyName = "ABC",

            City = "Paris",

            Phone = "333-444444",

            Location = new Location() { Name = "test" },            

        });

​

        using (var context = new EntityContext())

        {

            context.Customers.AddRange(list);

            context.BulkSaveChanges();

        }

    }

    public class EntityContext : DbContext

    {

        public EntityContext() : base(FiddleHelper.GetConnectionStringSqlServer())

        {

        }

        public DbSet<Customer> Customers { get; set; }

        public DbSet<Location> Locations { get; set; }

    }

    public class Customer

    {

        public int CustomerID { get; set; }

        public string Name { get; set; }

        public string CompanyName { get; set; }

        public string City { get; set; }

        public string Phone { get; set; }

        public Location Location { get; set; }

    }

    public class Location

    {

        public int LocationID { get; set; }

        public string Name { get; set; }

    }

}