Обновить 'README.md'

README.md

@@ -156,49 +156,25 @@ namespace WpfApp3
 
 ### MusicalInsrument
 ```
+using System;
 using System.Collections.Generic;
-using WpfApp3.Class;
-using System.IO;
-using CsvHelper;
-using CsvHelper.Configuration;
 using System.Linq;
-using System.Globalization;
-namespace WpfApp3
+using System.Runtime.Serialization;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WpfApp3.Class
 {
-    class InstrumentDataManager
+    [DataContract]
+    public class MusicalInstrument
     {
-        private List<MusicalInstrument> instruments;
-
-        public InstrumentDataManager()
-        {
-            instruments = new List<MusicalInstrument>
-            {
-                new MusicalInstrument { Name = "Гитара", Type = "Струнные", Price = 300 },
-                new MusicalInstrument { Name = "Барабаны", Type = "Ударные", Price = 500 },
-                new MusicalInstrument { Name = "Фортепиано", Type = "Клавишные", Price = 1000 },
-                new MusicalInstrument { Name = "Скрипка", Type = "Струнные", Price = 400 },
-                new MusicalInstrument { Name = "Труба", Type = "Медные", Price = 600 },
-            };
-            CsvConfiguration configuration = new CsvConfiguration(CultureInfo.InvariantCulture)
-            {
-                Delimiter = ",",
-                HasHeaderRecord = true,
-                IgnoreBlankLines = true
-            };
-
-            using (var reader = new StreamReader("./data.csv"))
-            using (var csv = new CsvReader(reader, configuration))
-            {
-                instruments = csv.GetRecords<MusicalInstrument>().ToList();
-            }
-        }
-
-        public List<MusicalInstrument> GetInstruments()
-        {
-            return instruments;
-        }
+        public string Name { get; set; 
+        public string Type { get; set; }
+        public string Brand { get; set; }
+        public double Price { get; set; } 
     }
 }
+```
 <Window x:Class="WpfApp3.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"