new DataContext : DataContext « System.Data.Linq « C# / C Sharp by API

1. C# / C Sharp by API
2. System.Data.Linq
3. DataContext

new DataContext

  
using System;
using System.Linq;
using System.Data.Linq;
using System.Data.Linq.Mapping;

static class HelloLinqToSql {
    [Table(Name = "Contacts")]
    class Contact {
        [Column(IsPrimaryKey = true)]
        public int ContactID { get; set; }
        [Column(Name = "ContactName")]
        public string Name { get; set; }
        [Column]
        public string City { get; set; }
    }

    static void Main() {
        string path = System.IO.Path.GetFullPath("northwnd.mdf");
        DataContext db = new DataContext(path);

        var contacts =
          from contact in db.GetTable<Contact>()
          where contact.City == "Paris"
          select contact;

        foreach (var contact in contacts)
            Console.WriteLine("Bonjour " + contact.Name);
    }
}

   
    
  

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