GeoJson as a field type for the Entity Framework

I use codeFirst and I want to run geojson in the database, so there is a table like

/// <summary> /// Класс для объектов которые могут быть автоматически импортированы /// </summary> [Table("NamedGeoJsonObjects")] public class NamedGeoJsonObject { /// <summary> /// Международное название сущности /// </summary> [Column("name")] public string Name { get; set; } /// <summary> /// Локализованное русское название сущности /// </summary> [Column("name_ru")] public string NameRu { get; set; } /// <summary> /// Geojson /// </summary> [Column("geojson")] public FeatureCollection GeoJson { get; set; } } 

When I try to create a migration, I write an error. Is there any option to directly drive GeoJson (or geometry) into the database without using a gasket from string? You can of course do this, of course, but this is exactly what I would like to avoid

  /// <summary> /// Geojson линии /// </summary> [Column("geojson")] public string _GeoJson { get; set; } /// <summary> /// Geojson линии /// </summary> [NotMapped] public FeatureCollection GeoJson { get { return JsonConvert.DeserializeObject<FeatureCollection>(_GeoJson); } set { _GeoJson = JsonConvert.SerializeObject(value); } }