public partial class Driver
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public Driver()
    {
        this.trip_tab = new HashSet<Trip>();

    }

    public string ID { get; set; }
    public string DriverTypeID { get; set; }
    public string VehicleID { get; set; }
    public string Name { get; set; }
    public string ContactNo { get; set; }
    public string Comment { get; set; }

    public virtual DriverType drivertype_tab { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Trip> trip_tab { get; set; }
}

public partial class DriverType
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public DriverType()
    {
        this.driver_tab = new HashSet<Driver>();
    }

    public string ID { get; set; }
    public string Type { get; set; }
    public string Comment { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Driver> driver_tab { get; set; }
}