using Newtonsoft.Json; using System; using WpfApp1; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.Serialization; using System.Runtime.Serialization.Json; using System.Text; using System.Threading.Tasks; namespace WpfApp1.model { public class JSONDataProvider : LocalDataProvider, IDataProvider { private List _CarList; public JSONDataProvider() { using (var sr = new StreamReader("./Test.json")) { _CarList = JsonConvert.DeserializeObject(sr.ReadToEnd()).ToList(); } } public new IEnumerable getCars() { return _CarList.Select(p => new cars { name = p.name, year = p.year, price = p.price, color = p.color, defects = p.defects, photo = p.photo, dateOfLastSTO = p.dateOfLastSTO == null ? null : DateOnly.Parse(p.dateOfLastSTO), }); } } }