oap_labs/models/Class4.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static wpf_data.models.Globals;
using System.Threading.Tasks;
using System.Collections.Generic;
using wpf_data;
using CsvHelper;
using System.Diagnostics;
using wpf_data.models;
using static wpf_data.MainWindow;
using System.IO;
using System.Globalization;

namespace wpf_data.models
{
    public class CSVDataProvider : LocalDataProvider,IDataProvider
    {
        private List<People> PeopleList;

        // конструктор класса
        public CSVDataProvider()
        {
            using (var reader = new StreamReader("./data.csv"))
            {
                using (var csv = new CsvReader(
                    reader,
                    CultureInfo.InvariantCulture))
                {
                    PeopleList = csv.GetRecords<People>().ToList();
                }
            }
        }
        public IEnumerable<People> getPeople()
        {
            return PeopleList;
        }
    }
}