diff --git a/lab_0/CollectionGenericObject/ICollectionGenericObjects.cs b/lab_0/CollectionGenericObject/ICollectionGenericObjects.cs
index 1c57f2c..6ad2367 100644
--- a/lab_0/CollectionGenericObject/ICollectionGenericObjects.cs
+++ b/lab_0/CollectionGenericObject/ICollectionGenericObjects.cs
@@ -51,7 +51,18 @@ namespace ProjectBus.CollectionGenericObject;
         /// <param name="position">Позиция</param>
         /// <returns>Объект</returns>
         T? Get(int position);
-    }
+
+        /// <summary>
+        /// Получение типа коллекции
+        /// </summary>
+        CollectionType GetCollectionType { get; }
+
+        /// <summary>
+        /// Получение объектов коллекции по одному
+        /// </summary>
+        /// <returns>Поэлементый вывод элементов коллекции</returns>
+        IEnumerable<T?> GetItems();
+}
 
 
 
diff --git a/lab_0/CollectionGenericObject/ListGenericObjects.cs b/lab_0/CollectionGenericObject/ListGenericObjects.cs
index 2fbfbdb..4070bcc 100644
--- a/lab_0/CollectionGenericObject/ListGenericObjects.cs
+++ b/lab_0/CollectionGenericObject/ListGenericObjects.cs
@@ -23,6 +23,8 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
 
     public int SetMaxCount { set { if (value > 0) { _maxCount = value; } } }
 
+    public CollectionType GetCollectionType => CollectionType.List;
+
     /// <summary>
     /// Конструктор
     /// </summary>
@@ -70,5 +72,13 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
         _collection.RemoveAt(position);
         return temp;
     }
+
+    public IEnumerable<T?> GetItems()
+    {
+        for (int i = 0; i < Count; ++i)
+        {
+            yield return _collection[i];
+        }
+    }
 }
 
diff --git a/lab_0/CollectionGenericObject/MassiveGenericObjects.cs b/lab_0/CollectionGenericObject/MassiveGenericObjects.cs
index 9b4ee88..d352b26 100644
--- a/lab_0/CollectionGenericObject/MassiveGenericObjects.cs
+++ b/lab_0/CollectionGenericObject/MassiveGenericObjects.cs
@@ -39,10 +39,12 @@ namespace ProjectBus.CollectionGenericObject;
             }
         }
 
-        /// <summary>
-        /// Конструктор
-        /// </summary>
-        public MassiveGenericObjects()
+    public CollectionType GetCollectionType => CollectionType.Massive;
+
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    public MassiveGenericObjects()
         {
             _collection = Array.Empty<T?>();
         }
@@ -132,5 +134,13 @@ namespace ProjectBus.CollectionGenericObject;
             _collection[position] = null;
             return temp;
         }
-    }
+
+    public IEnumerable<T?> GetItems()
+    {
+        for (int i = 0; i < _collection.Length; ++i)
+        {
+            yield return _collection[i];
+        }
+    }
+}
 
diff --git a/lab_0/Drawnings/DrawningBus.cs b/lab_0/Drawnings/DrawningBus.cs
index be191ba..3a4a07f 100644
--- a/lab_0/Drawnings/DrawningBus.cs
+++ b/lab_0/Drawnings/DrawningBus.cs
@@ -22,6 +22,14 @@ public class DrawningBus : DrawningSimpleBus
         EntitySimpleBus = new EntityBus(speed, weight, bodyColor, additionalColor, additionalCompartment, accordion);
     }
 
+    public DrawningBus(EntitySimpleBus simpleBus) : base(310, 52)
+    {
+        if (simpleBus != null && simpleBus is EntityBus bus)
+        {
+            EntitySimpleBus = new EntityBus(bus.Speed, bus.Weight, bus.BodyColor, bus.AdditionalColor, bus.AdditionalCompartment, bus.Accordion);
+        }
+    }
+
     public override void DrawTransport(Graphics g)
     {
         if (EntitySimpleBus == null || EntitySimpleBus is not EntityBus bus || !_startPosX.HasValue || !_startPosY.HasValue)
diff --git a/lab_0/Drawnings/DrawningSimpleBus.cs b/lab_0/Drawnings/DrawningSimpleBus.cs
index 873435a..2819396 100644
--- a/lab_0/Drawnings/DrawningSimpleBus.cs
+++ b/lab_0/Drawnings/DrawningSimpleBus.cs
@@ -80,6 +80,18 @@ public class DrawningSimpleBus
         EntitySimpleBus = new EntitySimpleBus(speed, weight, bodyColor);
     }
 
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    /// <param name="simpleBus">Класс-сущность</param>
+    public DrawningSimpleBus(EntitySimpleBus simpleBus) : this()
+    {
+        if (simpleBus != null)
+        {
+            EntitySimpleBus = new EntitySimpleBus(simpleBus.Speed, simpleBus.Weight, simpleBus.BodyColor);
+        }
+    }
+
     /// <summary>
     /// Конструктор для наследников
     /// </summary>
diff --git a/lab_0/Drawnings/ExtentionDrawningSimpleBus.cs b/lab_0/Drawnings/ExtentionDrawningSimpleBus.cs
new file mode 100644
index 0000000..94e4f33
--- /dev/null
+++ b/lab_0/Drawnings/ExtentionDrawningSimpleBus.cs
@@ -0,0 +1,56 @@
+using System;
+using ProjectBus.Entities;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectBus.Drawnings;
+
+public static class ExtentionDrawningSimpleBus
+{
+    /// <summary>
+    /// Разделитель для записи информации по объекту в файл
+    /// </summary>
+    private static readonly string _separatorForObject = ":";
+
+    /// <summary>
+    /// Создание объекта из строки
+    /// </summary>
+    /// <param name="info">Строка с данными для создания объекта</param>
+    /// <returns>Объект</returns>
+    public static DrawningSimpleBus? CreateDrawningSimpleBus(this string info)
+    {
+        string[] strs = info.Split(_separatorForObject);
+        EntitySimpleBus? simpleBus = EntityBus.CreateEntityBus(strs);
+        if (simpleBus != null)
+        {
+            return new DrawningBus((EntityBus)simpleBus);
+        }
+
+        simpleBus = EntitySimpleBus.CreateEntitySimpleBus(strs);
+        if (simpleBus != null)
+        {
+            return new DrawningSimpleBus(simpleBus);
+        }
+
+        return null;
+    }
+
+    /// <summary>
+    /// Получение данных для сохранения в файл
+    /// </summary>
+    /// <param name="drawningSimpleBus">Сохраняемый объект</param>
+    /// <returns>Строка с данными по объекту</returns>
+    public static string GetDataForSave(this DrawningSimpleBus drawningSimpleBus)
+    {
+        string[]? array = drawningSimpleBus?.EntitySimpleBus?.GetStringRepresentation();
+
+        if (array == null)
+        {
+            return string.Empty;
+        }
+
+        return string.Join(_separatorForObject, array);
+    }
+}
diff --git a/lab_0/Entities/EntityBus.cs b/lab_0/Entities/EntityBus.cs
index 24db7c8..820fa7f 100644
--- a/lab_0/Entities/EntityBus.cs
+++ b/lab_0/Entities/EntityBus.cs
@@ -40,4 +40,32 @@ public class EntityBus : EntitySimpleBus
         AdditionalCompartment = additionalCompartment;
         Accordion = accordion;
     }
-}
\ No newline at end of file
+    /// <summary>
+    /// Получение строк со значениями свойств объекта класса-сущности
+    /// </summary>
+    /// <returns></returns>
+    public override string[] GetStringRepresentation()
+    {
+        return new[]
+        {
+            nameof(EntityBus), Speed.ToString(),
+            Weight.ToString(), BodyColor.Name, AdditionalColor.Name, AdditionalCompartment.ToString(), Accordion.ToString()
+       
+        };
+    }
+
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <param name="strs"></param>
+    /// <returns></returns>
+    public static EntitySimpleBus? CreateEntityBus(string[] strs)
+    {
+        if (strs.Length != 7 || strs[0] != nameof(EntityBus))
+        {
+            return null;
+        }
+
+        return new EntityBus(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]), Color.FromName(strs[4]), Convert.ToBoolean(strs[5]), Convert.ToBoolean(strs[5]));
+    }
+}
diff --git a/lab_0/Entities/EntitySimpleBus.cs b/lab_0/Entities/EntitySimpleBus.cs
index 438bad8..5f31438 100644
--- a/lab_0/Entities/EntitySimpleBus.cs
+++ b/lab_0/Entities/EntitySimpleBus.cs
@@ -20,10 +20,6 @@ public class EntitySimpleBus
     /// Основной цвет
     /// </summary>
     public Color BodyColor { get; private set; }
-    public void setBodyColor(Color color)
-    {
-        BodyColor = color;
-    }
 
 
     /// <summary>
@@ -43,4 +39,26 @@ public class EntitySimpleBus
         Weight = weight;
         BodyColor = bodyColor;
     }
+
+    // <summary>
+    /// Получение строк со значениями свойств объекта класса-сущности
+    /// </summary>
+    /// <returns></returns>
+    public virtual string[] GetStringRepresentation()
+    {
+        return new[] { nameof(EntitySimpleBus), Speed.ToString(), Weight.ToString(), BodyColor.Name };
+    }
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <param name="strs"></param>
+    /// <returns></returns>
+    public static EntitySimpleBus? CreateEntitySimpleBus(string[] strs)
+    {
+        if (strs.Length != 4 || strs[0] != nameof(EntitySimpleBus))
+        {
+            return null;
+        }
+        return new EntitySimpleBus(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]));
+    }
 }