Entity-framework – Set model property to boolean in Entity Framework

LINQ to SQL only supports 1 to 1 mapping of database tables, views, sprocs and functions available in Microsoft SQL Server. It's a great API to use for quick data access construction to relatively well designed SQL Server databases. LINQ2SQL was first released with C# 3.0 and .Net Framework 3.5.

LINQ to Entities (ADO.Net Entity Framework) is an ORM (Object Relational Mapper) API which allows for a broad definition of object domain models and their relationships to many different ADO.Net data providers. As such, you can mix and match a number of different database vendors, application servers or protocols to design an aggregated mash-up of objects which are constructed from a variety of tables, sources, services, etc. ADO.Net Framework was released with the .Net Framework 3.5 SP1.

This is a good introductory article on MSDN: Introducing LINQ to Relational Data

If your existing database has a tinyint column that you wish to represent as a Boolean property of your C# class, then you can do this as follows:

public class Subscription
{
  public int Id { get; set; }
  public string Name { get; set; }

  // the column of your database
  public byte? autoRenew { get; set; }

  // the property you want
  [NotMapped]
  public bool Autorenew
  {
    get => autoRenew > 0;
    set { this.autoRenew = (byte)(value ? 1 : 0);  }
  }
}

Obviously this assumes that 0 and 1 correspond to false and true, respectively. In this sample, the autoRenew is nullable and null is interpreted as false.