public ActionResult SaveProductSeries(string productSeries, Guid actReceptionId)
{
var format = "dd.MM.yyyy"; // your datetime format
var dateTimeConverter = new IsoDateTimeConverter {
DateTimeFormat = format
};
var series = JsonConvert.DeserializeObject <List <SerieProduct> >(productSeries, dateTimeConverter).ToList();
repository.SaveProductSeries(series, actReceptionId);
return(Json(""));
}