Question

I have this Linq and what I tried to do to set the element into the hashset and doesn’t work what’s missing?? When I debugged the result always show me the property empty

var estructura = (from result in query
       select new Estructura()
       {
           IdEstructura = result.Servicio.Campana.Cliente.Direccion.IdDireccion,
           Descripcion = result.Servicio.Campana.Cliente.Direccion.Descripcion,
           lstEstructurasHijos = new HashSet<Estructura>().Select(
            C => new Estructura()
            {
                IdEstructura = result.Servicio.Campana.Cliente.IdCliente,
                Descripcion = result.Servicio.Campana.Cliente.Descripcion,
                lstEstructurasHijos = new HashSet<Estructura>().Select(
                 CA => new Estructura() 
                 { 
                    IdEstructura = result.Servicio.Campana.IdCampana,
                    Descripcion = result.Servicio.Campana.Descripcion,
                    lstEstructurasHijos = new HashSet<Estructura>().Select(
                    S => new Estructura()
                    {
                        IdEstructura = result.Servicio.IdServicio,
                        Descripcion = result.Servicio.Descripcion,
                        lstEstructurasHijos = new HashSet<Estructura>()
                    })
                 })
            })

       });

Answer 1

You are misusing the selecton the HashSet like this one:

new HashSet<Estructura>().Select(//... Means take from that new HashSet....

Of course a new HashSet won’t contain anything. This’s why you get empty HashSets.