чтение через StreamReader

Boats/Boats/MapsCollection.cs

@@ -120,28 +120,20 @@ namespace Boats
             {
                 return false;
             }
-            string bufferTextFromFile = "";
+            using (StreamReader sr = File.OpenText(filename))
-            using (FileStream fs = new(filename, FileMode.Open))
             {
-                byte[] b = new byte[fs.Length];
+                string? currentLine = sr.ReadLine();
-                UTF8Encoding temp = new(true);
+                if (currentLine == null || !currentLine.Contains("MapsCollection"))
-                while (fs.Read(b, 0, b.Length) > 0)
-                {
-                    bufferTextFromFile += temp.GetString(b);
-                }
-            }
-            var strs = bufferTextFromFile.Split(new char[] { '\n', '\r' },
-                StringSplitOptions.RemoveEmptyEntries);
-            if (!strs[0].Contains("MapsCollection"))
                 {
                     //если нет такой записи, то это не те данные
                     return false;
                 }
                 //очищаем записи
                 _mapStorages.Clear();
-            for (int i = 1; i < strs.Length; ++i)
+                currentLine = sr.ReadLine();
+                while (currentLine != null)
                 {
-                var elem = strs[i].Split(separatorDict);
+                    var elem = currentLine.Split(separatorDict);
                     AbstractMap map = null;
                     switch (elem[1])
                     {
@@ -161,6 +153,8 @@ namespace Boats
                     );
                     _mapStorages[elem[0]].LoadData(
                         elem[2].Split(separatorData, StringSplitOptions.RemoveEmptyEntries));
+                    currentLine = sr.ReadLine();
+                }
             }
             return true;
         }