I need make fetch an individual record in a subform

I need make fetch an individual record in a subform


I want to do a fetch that affects a single entry from my subform. This subform is an independent form in which I filled a record. I want to invoke that record in a single entry from my subform, and another record different the following entry and so without affecting my other entries,

My code it works fine if I open the form and use the Fetch. But it does not work when I try to use it when it is a subform


if (input.Articulos_Cotizados  !=  null)
{
    if (input.Imagen  !=  null)
    {
        fetch  =  Articulos_Cotizados_individuales  [ID == input.Articulos_Cotizados];
        input.Imagen = fetch.Image;
    }
}

Fine! :D




Not fine :c