labwork06

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/AbstractCompany.cs

@@ -50,7 +50,7 @@ public abstract class AbstractCompany
         _pictureWidth = picWidth;
         _pictureHeight = picHeight;
         _collection = collection;
-        _collection.SetMaxCount = GetMaxCount;
+        _collection.MaxCount = GetMaxCount;
     }
 
     /// <summary>

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/ICollectionGenericObjects.cs

@@ -17,10 +17,12 @@ public interface ICollectionGenericObjects<T>
     /// Количество объектов в коллекции
     /// </summary>
     int Count { get; }
+
     /// <summary>
     /// Установка максимального количества элементов
     /// </summary>
-    int SetMaxCount { set; }
+    int MaxCount { get; set; }
+
     /// <summary>
     /// Добавление объекта в коллекцию
     /// </summary>
@@ -46,4 +48,15 @@ public interface ICollectionGenericObjects<T>
     /// <returns>Объект</returns>
     T? Get(int position);
 
+    /// <summary>
+    /// Получение типа коллекции
+    /// </summary>
+    CollectionType GetCollectionType { get; }
+
+    /// <summary>
+    /// Получение объектов коллекции по одному
+    /// </summary>
+    /// <returns></returns>
+    IEnumerable<T> GetItems();
+
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/ListGenericObjects.cs

@@ -20,7 +20,23 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
     private int _maxCount;
 
     public int Count => _collection.Count;
-    public int SetMaxCount { set { if (value > 0) { _maxCount = value; } } }
+
+    public int MaxCount
+    {
+        get
+        {
+            return _collection.Count;
+        }
+        set
+        {
+            if (value > 0)
+            {
+                _maxCount = value;
+            }
+        }
+    }
+
+    public CollectionType GetCollectionType => CollectionType.List;
 
     /// <summary>
     /// Конструктор
@@ -76,4 +92,12 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
         return obj;
 
     }
+
+    public IEnumerable<T?> GetItems()
+    {
+        for (int i = 0; i < _collection.Count; ++i)
+        {
+            yield return _collection[i];
+        }
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/LocomotiveDepot.cs

@@ -25,9 +25,9 @@ public class LocomotiveDepot : AbstractCompany
         int count_width = _pictureWidth / _placeSizeWidth; // кол-во мест в ширину
         int count_height = _pictureHeight / _placeSizeHeight; // кол-во мест в длинну
         Pen pen = new(Color.Black, 3);
-        for (int i = 0; i < count_width; i++)
+        for (int i = 0; i < count_width ; i++)
         {
-            for (int j = 0; j < count_height + 1; ++j)
+            for (int j = 0; j < count_height + 1 ; ++j)
             {
                 g.DrawLine(pen, i * _placeSizeWidth + 10, j * _placeSizeHeight + 5 , i * _placeSizeWidth + _placeSizeWidth - 50, j * _placeSizeHeight + 5); 
                 g.DrawLine(pen, i * _placeSizeWidth + 10, j * _placeSizeHeight , i * _placeSizeWidth + 10, j * _placeSizeHeight + _placeSizeHeight );
@@ -45,12 +45,12 @@ public class LocomotiveDepot : AbstractCompany
 
         if (_collection?.Count != null)
         {
-            for (int i = 0; i < (_collection.Count); i++)
+            for (int i = 0; i < (_collection?.Count); i++)
             {
                 if (_collection.Get(i) != null)
                 {
-                    _collection.Get(i).SetPictureSize(_pictureWidth, _pictureHeight);
+                    _collection?.Get(i)?.SetPictureSize(_pictureWidth, _pictureHeight);
-                    _collection.Get(i).SetPosition(_placeSizeWidth * positionWidth + 25, positionHeight * _placeSizeHeight + 10);
+                    _collection?.Get(i)?.SetPosition(_placeSizeWidth * positionWidth + 25, positionHeight * _placeSizeHeight + 10);
                 }
 
                 if (positionWidth < width - 1)

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/MassiveGenericObjects.cs

@@ -20,7 +20,28 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
 
     public int Count => _collection.Length;
 
-    public int SetMaxCount { set { if (Count > 0) { Array.Resize(ref _collection, value); } else { _collection = new T?[value]; } } }
+    public int MaxCount
+    {
+        get
+        {
+            return _collection.Length;
+        }
+        set
+        {
+            if (value > 0)
+            {
+                if (_collection.Length > 0)
+                {
+                    Array.Resize(ref _collection, value);
+                }
+                else _collection = new T?[value];
+            }
+        }
+    }
+
+    public CollectionType GetCollectionType => CollectionType.Massive;
+
+    
 
     /// <summary>
     /// Конструктор
@@ -104,4 +125,12 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
         _collection[position] = null;
         return removedObject;
     }
+
+    public IEnumerable<T> GetItems()
+    {
+        for( int i = 0; i < _collection.Length; ++i ) 
+        {
+            yield return _collection[i];
+        }
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/CollectionGenericObjects/StorageCollection.cs

@@ -1,4 +1,5 @@
-using System;
+using ProjectElectricLocomotive.Drawnings;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -11,7 +12,7 @@ namespace ProjectElectricLocomotive.CollectionGenericObjects;
 /// </summary>
 /// <typeparam name="T"></typeparam>
 public class StorageCollection<T>
-    where T : class
+    where T : DrawningLocomotive
 {
     /// <summary>
     /// Словарь с коллекциями
@@ -23,6 +24,21 @@ public class StorageCollection<T>
     /// </summary>
     public List<string> Keys => _storages.Keys.ToList();
 
+    /// <summary>
+    /// Ключевое слово, с которого должен начинаться файл
+    /// </summary>
+    private readonly string _collectionKey = "CollectionStorage";
+
+    /// <summary>
+    /// Разделитель для записи ключа и значения элемента словаря
+    /// </summary>
+    private readonly string _separatorForKeyValue = "|";
+
+    /// <summary>
+    /// Разделитель для записей коллекции данных в файл
+    /// </summary>
+    private readonly string _separatorItems = ";";
+
     /// <summary>
     /// Конструктор
     /// </summary>
@@ -64,14 +80,13 @@ public class StorageCollection<T>
         }
     }
 
-    public ICollectionGenericObjects<T>? this[string name]
+    public ICollectionGenericObjects<T>? this[int index]
     {
         get
         {
-            // логика получения объекта (если есть запись с ключом мы должны вернуть объект иначе значение словаря по ключу)
+            if (index >= 0 && index < _storages.Count)
-            if (_storages.ContainsKey(name))
             {
-                return _storages[name];
+                return _storages.ElementAt(index).Value;
             }
             else
             {
@@ -79,4 +94,115 @@ public class StorageCollection<T>
             }
         }
     }
+
+
+    /// <summary>
+    /// Сохранение информации по автомобилям в хранилице в файл
+    /// </summary>
+    /// <param name="filename">Путь и имя файла</param>
+    /// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
+    public bool SaveData(string filename)
+    {
+        if (File.Exists(filename))
+        {
+            File.Delete(filename);
+        }
+
+        if (_storages.Count == 0) return false;
+
+        using (StreamWriter writer = new StreamWriter(filename))
+        {
+            writer.WriteLine(_collectionKey);
+            foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
+            {
+                writer.Write($"{value.Key}{_separatorForKeyValue}{value.Value.GetCollectionType}{_separatorForKeyValue}{value.Value.MaxCount}{_separatorForKeyValue}");
+                writer.Write(_separatorItems);
+
+                foreach (T? item in value.Value.GetItems())
+                {
+                    string data = item?.GetDataForSave() ?? string.Empty;
+                    if (!string.IsNullOrEmpty(data))
+                    {
+                        writer.Write(data + _separatorItems);
+                    }
+                }
+                writer.WriteLine();
+            }
+        }
+        return true;
+    }
+
+    /// <summary>
+    /// Загрузка информации по автомобилям в хранилище из файла
+    /// </summary>
+    /// <param name="filename">Путь и имя файла</param>
+    /// <returns>true - загрузка прошла успешно, false - ошибка при загрузке данных</returns>
+    public bool LoadData(string filename)
+    {
+        if (!File.Exists(filename)) return false;
+
+        using (StreamReader reader = new StreamReader(filename))
+        {
+            string line = reader.ReadLine();
+
+            if (line == null || !line.Equals(_collectionKey))
+            {
+                return false;
+            }
+
+            _storages.Clear();
+
+            while (line != null)
+            {
+                string[] record = line.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
+
+                if (record.Length != 4)
+                {
+                    line = reader.ReadLine();
+                    continue;
+                }
+
+                CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
+
+                ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
+
+                if (collection == null) return false;
+
+                collection.MaxCount = Convert.ToInt32(record[2]);
+
+                string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
+
+                foreach (string elem in set)
+                {
+                    if (elem?.CreateDrawningLocomotive() is T locomotive)
+                    {
+                        if (collection.Insert(locomotive) == -1)
+                        {
+                            return false;
+                        }
+                    }
+                }
+                _storages.Add(record[0], collection);
+
+                line = reader.ReadLine();
+            }
+        }
+
+        return true;
+    }
+
+    /// <summary>
+    /// Создание коллекции по типу
+    /// </summary>
+    /// <param name="collectionType"></param>
+    /// <returns></returns>
+    private static ICollectionGenericObjects<T>? CreateCollection(CollectionType collectionType)
+    {
+        return collectionType switch
+        {
+            CollectionType.Massive => new MassiveGenericObjects<T>(),
+            CollectionType.List => new ListGenericObjects<T>(),
+            _ => null,
+        };
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/Drawnings/DrawningElectricLocomotive.cs

@@ -22,6 +22,11 @@ public class DrawningElectricLocomotive : DrawningLocomotive
         EntityLocomotive = new EntityElectricLocomotive(speed, weight, bodyColor, additionalColor, electricHorns, batteryPlacement);
     }
 
+    public DrawningElectricLocomotive(EntityLocomotive locomotive) : base(locomotive)
+    {
+
+    }
+
     public override void DrawTransport(Graphics g)
     {
         if (EntityLocomotive == null || EntityLocomotive is not EntityElectricLocomotive electricLocomotive ||  !_startPosX.HasValue || !_startPosY.HasValue)

ProjectElectricLocomotive/ProjectElectricLocomotive/Drawnings/DrawningLocomotive.cs

@@ -87,6 +87,11 @@ public class DrawningLocomotive
         EntityLocomotive = new EntityLocomotive(speed, weight, bodyColor);
     }
 
+    public DrawningLocomotive(EntityLocomotive locomotive)
+    {
+        EntityLocomotive = locomotive;
+    }
+
     /// <summary>
     /// Конструктор для наследников
     /// </summary>

ProjectElectricLocomotive/ProjectElectricLocomotive/Drawnings/ExtentionDrawningLocomotive.cs

@@ -0,0 +1,53 @@
+using ProjectElectricLocomotive.Entities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectElectricLocomotive.Drawnings;
+
+public static class ExtentionDrawningLocomotive
+{
+
+    /// <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 DrawningLocomotive? CreateDrawningLocomotive(this string info)
+    {
+        string[] strs = info.Split(_separatorForObject);
+        EntityLocomotive? locomotive = EntityElectricLocomotive.CreateEntityElectricLocomotive(strs);
+        if (locomotive != null)
+        {
+            return new DrawningElectricLocomotive(locomotive);
+        }
+        locomotive = EntityLocomotive.CreateEntityLocomotive(strs);
+        if (locomotive != null)
+        {
+            return new DrawningLocomotive(locomotive);
+        }
+        return null;
+    }
+
+    /// <summary>
+    /// Получение данных для сохранения в файл
+    /// </summary>
+    /// <param name="drawningLocomotive"></param>
+    /// <returns></returns>
+    public static string GetDataForSave(this DrawningLocomotive drawningLocomotive)
+    {
+        string[]? array = drawningLocomotive?.EntityLocomotive?.GetStringRepresentation();
+
+        if (array == null) return string.Empty;
+
+        return string.Join(_separatorForObject, array);
+
+    }
+}

ProjectElectricLocomotive/ProjectElectricLocomotive/Entities/EntityElectricLocomotive.cs

@@ -42,4 +42,27 @@ public class EntityElectricLocomotive : EntityLocomotive
     {
         AdditionalColor = color;
     }
+
+    /// <summary>
+    /// Получение строк с значениями свойств объекта класса-сущности
+    /// </summary>
+    /// <returns></returns>
+    public override string[] GetStringRepresentation()
+    {
+        return new[] { nameof(EntityElectricLocomotive), Speed.ToString(), Weight.ToString(), BodyColor.Name, AdditionalColor.Name, ElectricHorns.ToString(), BatteryPlacement.ToString() };
+    }
+
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <param name="strs"></param>
+    /// <returns></returns>
+    public static EntityElectricLocomotive? CreateEntityElectricLocomotive(string[] strs)
+    {
+        if (strs.Length != 7 || strs[0] != nameof(EntityElectricLocomotive))
+        {
+            return null;
+        }
+        return new EntityElectricLocomotive(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]), Color.FromName(strs[4]), Convert.ToBoolean(strs[5]), Convert.ToBoolean(strs[6]));
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/Entities/EntityLocomotive.cs

@@ -47,4 +47,26 @@ public class EntityLocomotive
     {
         BodyColor = bodyColor;
     }
+
+    /// <summary>
+    /// Получение строк со значениями свойств объекта класса-сущности 
+    /// </summary>
+    /// <returns></returns>
+    public virtual string[] GetStringRepresentation()
+    {
+        return new[] { nameof(EntityLocomotive), Speed.ToString(), Weight.ToString(), BodyColor.Name };
+    }
+
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <returns></returns>
+    public static EntityLocomotive? CreateEntityLocomotive(string[] strs)
+    {
+        if(strs.Length != 4 || strs[0] != nameof(EntityLocomotive))
+        {
+            return null;
+        }
+        return new EntityLocomotive(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]));
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/FormLocomotiveCollection.Designer.cs

@@ -47,10 +47,17 @@
             labelCollectionName = new Label();
             pictureBox = new PictureBox();
             colorDialog1 = new ColorDialog();
+            menuStrip = new MenuStrip();
+            файлToolStripMenuItem = new ToolStripMenuItem();
+            saveToolStripMenuItem = new ToolStripMenuItem();
+            loadToolStripMenuItem = new ToolStripMenuItem();
+            saveFileDialog = new SaveFileDialog();
+            openFileDialog = new OpenFileDialog();
             groupBoxTools.SuspendLayout();
             panelCompanyTools.SuspendLayout();
             panelStorage.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).BeginInit();
+            menuStrip.SuspendLayout();
             SuspendLayout();
             // 
             // groupBoxTools
@@ -60,9 +67,9 @@
             groupBoxTools.Controls.Add(panelCompanyTools);
             groupBoxTools.Controls.Add(panelStorage);
             groupBoxTools.Dock = DockStyle.Right;
-            groupBoxTools.Location = new Point(640, 0);
+            groupBoxTools.Location = new Point(640, 24);
             groupBoxTools.Name = "groupBoxTools";
-            groupBoxTools.Size = new Size(200, 593);
+            groupBoxTools.Size = new Size(200, 569);
             groupBoxTools.TabIndex = 0;
             groupBoxTools.TabStop = false;
             groupBoxTools.Text = "Инструменты";
@@ -98,7 +105,7 @@
             panelCompanyTools.Controls.Add(buttonRemoveLocomotive);
             panelCompanyTools.Dock = DockStyle.Bottom;
             panelCompanyTools.Enabled = false;
-            panelCompanyTools.Location = new Point(3, 364);
+            panelCompanyTools.Location = new Point(3, 340);
             panelCompanyTools.Name = "panelCompanyTools";
             panelCompanyTools.Size = new Size(194, 226);
             panelCompanyTools.TabIndex = 8;
@@ -237,12 +244,52 @@
             // pictureBox
             // 
             pictureBox.Dock = DockStyle.Fill;
-            pictureBox.Location = new Point(0, 0);
+            pictureBox.Location = new Point(0, 24);
             pictureBox.Name = "pictureBox";
-            pictureBox.Size = new Size(640, 593);
+            pictureBox.Size = new Size(640, 569);
             pictureBox.TabIndex = 1;
             pictureBox.TabStop = false;
             // 
+            // menuStrip
+            // 
+            menuStrip.Items.AddRange(new ToolStripItem[] { файлToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(840, 24);
+            menuStrip.TabIndex = 2;
+            menuStrip.Text = "menuStrip";
+            // 
+            // файлToolStripMenuItem
+            // 
+            файлToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { saveToolStripMenuItem, loadToolStripMenuItem });
+            файлToolStripMenuItem.Name = "файлToolStripMenuItem";
+            файлToolStripMenuItem.Size = new Size(48, 20);
+            файлToolStripMenuItem.Text = "Файл";
+            // 
+            // saveToolStripMenuItem
+            // 
+            saveToolStripMenuItem.Name = "saveToolStripMenuItem";
+            saveToolStripMenuItem.ShortcutKeys = Keys.Control | Keys.S;
+            saveToolStripMenuItem.Size = new Size(173, 22);
+            saveToolStripMenuItem.Text = "Сохранить";
+            saveToolStripMenuItem.Click += SaveToolStripMenuItem_Click;
+            // 
+            // loadToolStripMenuItem
+            // 
+            loadToolStripMenuItem.Name = "loadToolStripMenuItem";
+            loadToolStripMenuItem.ShortcutKeys = Keys.Control | Keys.L;
+            loadToolStripMenuItem.Size = new Size(173, 22);
+            loadToolStripMenuItem.Text = "Загрузить";
+            loadToolStripMenuItem.Click += LoadToolStripMenuItem_Click;
+            // 
+            // saveFileDialog
+            // 
+            saveFileDialog.Filter = "txt file|*.txt";
+            // 
+            // openFileDialog
+            // 
+            openFileDialog.Filter = "txt file|*.txt";
+            // 
             // FormLocomotiveCollection
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
@@ -250,6 +297,8 @@
             ClientSize = new Size(840, 593);
             Controls.Add(pictureBox);
             Controls.Add(groupBoxTools);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
             Name = "FormLocomotiveCollection";
             Text = "FormLocomotiveCollection";
             groupBoxTools.ResumeLayout(false);
@@ -258,7 +307,10 @@
             panelStorage.ResumeLayout(false);
             panelStorage.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).EndInit();
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
             ResumeLayout(false);
+            PerformLayout();
         }
 
         #endregion
@@ -282,5 +334,11 @@
         private RadioButton radioButtonList;
         private RadioButton radioButtonMassive;
         private Panel panelCompanyTools;
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem файлToolStripMenuItem;
+        private ToolStripMenuItem saveToolStripMenuItem;
+        private ToolStripMenuItem loadToolStripMenuItem;
+        private SaveFileDialog saveFileDialog;
+        private OpenFileDialog openFileDialog;
     }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/FormLocomotiveCollection.cs

@@ -62,7 +62,7 @@ public partial class FormLocomotiveCollection : Form
     /// <param name="locomotive"></param>
     private void SetLocomotive(DrawningLocomotive locomotive)
     {
-        if(_company == null || locomotive == null) 
+        if (_company == null || locomotive == null)
         {
             return;
         }
@@ -160,18 +160,18 @@ public partial class FormLocomotiveCollection : Form
     /// <param name="e"></param>
     private void ButtonCollectionAdd_Click(object sender, EventArgs e)
     {
-        if(string.IsNullOrEmpty(textBoxCollectionName.Text) || (!radioButtonList.Checked && !radioButtonMassive.Checked))
+        if (string.IsNullOrEmpty(textBoxCollectionName.Text) || (!radioButtonList.Checked && !radioButtonMassive.Checked))
         {
             MessageBox.Show("Не все данные заполнены", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
             return;
         }
 
         CollectionType collectionType = CollectionType.None;
-        if(radioButtonMassive.Checked)
+        if (radioButtonMassive.Checked)
         {
             collectionType = CollectionType.Massive;
         }
-        else if (radioButtonList.Checked) 
+        else if (radioButtonList.Checked)
         {
             collectionType = CollectionType.List;
         }
@@ -207,10 +207,9 @@ public partial class FormLocomotiveCollection : Form
     private void RefreshListBoxItems()
     {
         listBoxCollection.Items.Clear();
-        for(int i = 0; i < _storageCollection.Keys?.Count; ++i)
+        foreach(string colName in _storageCollection.Keys)
         {
-            string? colName = _storageCollection.Keys?[i];
+            if (!string.IsNullOrEmpty(colName))
-            if(!string.IsNullOrEmpty(colName) ) 
             {
                 listBoxCollection.Items.Add(colName);
             }
@@ -230,7 +229,7 @@ public partial class FormLocomotiveCollection : Form
             return;
         }
 
-        ICollectionGenericObjects<DrawningLocomotive>? collection = _storageCollection[listBoxCollection.SelectedItem?.ToString() ?? string.Empty];
+        ICollectionGenericObjects<DrawningLocomotive>? collection = _storageCollection[listBoxCollection.SelectedIndex];
         if (collection == null)
         {
             MessageBox.Show("Коллекция не проиннициализирована");
@@ -245,4 +244,45 @@ public partial class FormLocomotiveCollection : Form
         panelCompanyTools.Enabled = true;
         RefreshListBoxItems();
     }
+
+    /// <summary>
+    /// Обработка нажатия "Сохранить"
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void SaveToolStripMenuItem_Click(object sender, EventArgs e)
+    {
+        if (saveFileDialog.ShowDialog() == DialogResult.OK)
+        {
+            if (_storageCollection.SaveData(saveFileDialog.FileName))
+            {
+                MessageBox.Show("Сохранение прошло успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+            }
+            else
+            {
+                MessageBox.Show("Не сохранилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+
+    /// <summary>
+    /// Обработка нажатия "Загрузить"
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void LoadToolStripMenuItem_Click(object sender, EventArgs e)
+    {
+        if (openFileDialog.ShowDialog() == DialogResult.OK)
+        {
+            if (_storageCollection.LoadData(openFileDialog.FileName))
+            {
+                MessageBox.Show("Загрузка прошла успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                RefreshListBoxItems();
+            }
+            else
+            {
+                MessageBox.Show("Не сохранилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
 }

ProjectElectricLocomotive/ProjectElectricLocomotive/FormLocomotiveCollection.resx

@@ -120,4 +120,13 @@
   <metadata name="colorDialog1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>17, 17</value>
   </metadata>
+  <metadata name="menuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>138, 17</value>
+  </metadata>
+  <metadata name="saveFileDialog.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>247, 17</value>
+  </metadata>
+  <metadata name="openFileDialog.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>382, 17</value>
+  </metadata>
 </root>