diff --git a/Stormtrooper/Stormtrooper/CollectionGenericObjects/CollectionType.cs b/Stormtrooper/Stormtrooper/CollectionGenericObjects/CollectionType.cs
new file mode 100644
index 0000000..10050bb
--- /dev/null
+++ b/Stormtrooper/Stormtrooper/CollectionGenericObjects/CollectionType.cs
@@ -0,0 +1,20 @@
+namespace Stormtrooper.CollectionGenericObjects;
+
+/// <summary>
+/// Тип коллекции
+/// </summary>
+public enum CollectionType
+{
+    /// <summary>
+    /// Неопределено
+    /// </summary>
+    None = 0,
+    /// <summary>
+    /// Массив
+    /// </summary>
+    Massive = 1,
+    /// <summary>
+    /// Список
+    /// </summary>
+    List = 2
+}
\ No newline at end of file
diff --git a/Stormtrooper/Stormtrooper/CollectionGenericObjects/ListGenericObjects.cs b/Stormtrooper/Stormtrooper/CollectionGenericObjects/ListGenericObjects.cs
new file mode 100644
index 0000000..607ad12
--- /dev/null
+++ b/Stormtrooper/Stormtrooper/CollectionGenericObjects/ListGenericObjects.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Stormtrooper.CollectionGenericObjects;
+
+/// <summary>
+/// Параметризованный набор объектов
+/// </summary>
+/// <typeparam name="T">Параметр: ограничение - ссылочный тип</typeparam>
+public class ListGenericObjects<T> : ICollectionGenericObjects<T>
+where T : class
+{
+    /// <summary>
+    /// Список объектов, которые храним
+    /// </summary>
+    private readonly List<T?> _collection;
+    /// <summary>
+    /// Максимально допустимое число объектов в списке
+    /// </summary>
+    private int _maxCount;
+    public int Count => _collection.Count;
+    public int SetMaxCount { set { if (value > 0) { _maxCount = value; } } }
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    public ListGenericObjects()
+    {
+        _collection = new();
+    }
+    public T? Get(int position)
+    {
+        // TODO проверка позиции
+        if( position>= 0 && position < Count)
+        {
+            return _collection[position];
+        }
+        return null;
+    }
+    public int Insert(T obj)
+    {
+        // TODO проверка, что не превышено максимальное количество элементов
+        // TODO вставка в конец набора
+        if (Count <= _maxCount)
+        {
+            _collection.Add(obj);
+            return Count;
+        }
+        return -1;
+    }
+    public int Insert(T obj, int position)
+    {
+        // TODO проверка, что не превышено максимальное количество элементов
+        // TODO проверка позиции
+        // TODO вставка по позиции
+        if (Count < _maxCount && position>=0 && position < _maxCount)
+        {
+            _collection.Insert(position, obj);
+            return position;
+        }
+        return -1;
+    }
+    public T Remove(int position)
+    {
+        // TODO проверка позиции
+        // TODO удаление объекта из списка
+        T temp = _collection[position];
+        if(position>=0 && position < _maxCount)
+        {
+            _collection.RemoveAt(position);
+            return temp;
+        }
+        return null;
+    }
+
+}
+
diff --git a/Stormtrooper/Stormtrooper/CollectionGenericObjects/MassiveGenericObjects.cs b/Stormtrooper/Stormtrooper/CollectionGenericObjects/MassiveGenericObjects.cs
index 62e4526..17be693 100644
--- a/Stormtrooper/Stormtrooper/CollectionGenericObjects/MassiveGenericObjects.cs
+++ b/Stormtrooper/Stormtrooper/CollectionGenericObjects/MassiveGenericObjects.cs
@@ -14,7 +14,21 @@ where T : class
     /// </summary>
     private T?[] _collection;
     public int Count => _collection.Length;
-    public int SetMaxCount { set { if (value > 0) { _collection = new T?[value]; } } }
+    public int SetMaxCount { 
+        set
+        {
+            if (value > 0) {
+                if (_collection.Length > 0)
+                {
+                    Array.Resize(ref _collection, value);
+                }
+                else
+                {
+                    _collection = new T?[value];
+                }
+            }
+        }
+    }
 
     /// <summary>
     /// Конструктор
diff --git a/Stormtrooper/Stormtrooper/CollectionGenericObjects/StorageCollection.cs b/Stormtrooper/Stormtrooper/CollectionGenericObjects/StorageCollection.cs
new file mode 100644
index 0000000..ee0023b
--- /dev/null
+++ b/Stormtrooper/Stormtrooper/CollectionGenericObjects/StorageCollection.cs
@@ -0,0 +1,80 @@
+using Stormtrooper.CollectionGenericObjects;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Stormtrooper.CollectionGenericObjects;
+
+/// <summary>
+/// Класс-хранилище коллекций
+/// </summary>
+/// <typeparam name="T"></typeparam>
+public class StorageCollection<T>
+where T : class
+{
+    /// <summary>
+    /// Словарь (хранилище) с коллекциями
+    /// </summary>
+    readonly Dictionary<string, ICollectionGenericObjects<T>> _storages;
+    /// <summary>
+    /// Возвращение списка названий коллекций
+    /// </summary>
+    public List<string> Keys => _storages.Keys.ToList();
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    public StorageCollection()
+    {
+        _storages = new Dictionary<string, ICollectionGenericObjects<T>>();
+    }
+    /// <summary>
+    /// Добавление коллекции в хранилище
+    /// </summary>
+    /// <param name="name">Название коллекции</param>
+    /// <param name="collectionType">тип коллекции</param>
+    public void AddCollection(string name, CollectionType collectionType)
+    {
+        // TODO проверка, что name не пустой и нет в словаре записи с таким ключом
+        // TODO Прописать логику для добавления
+        if (!(collectionType == CollectionType.None) && !_storages.ContainsKey(name))
+        {
+            if (collectionType == CollectionType.List)
+            {
+                _storages.Add(name, new ListGenericObjects<T>());
+            }
+            else if (collectionType == CollectionType.Massive)
+            {
+                _storages.Add(name, new MassiveGenericObjects<T>());
+            }
+        }
+    }
+    /// <summary>
+    /// Удаление коллекции
+    /// </summary>
+    /// <param name="name">Название коллекции</param>
+    public void DelCollection(string name)
+    {
+        // TODO Прописать логику для удаления коллекции
+        if (_storages.ContainsKey(name)) { _storages.Remove(name); }
+    }
+    /// <summary>
+    /// Доступ к коллекции
+    /// </summary>
+    /// <param name="name">Название коллекции</param>
+    /// <returns></returns>
+    public ICollectionGenericObjects<T>? this[string name]
+    {
+        get
+        {
+            // TODO Продумать логику получения объекта
+            if (_storages.ContainsKey(name))
+            {
+                return _storages[name];
+            }
+            return null;
+        }
+    }
+}
+
diff --git a/Stormtrooper/Stormtrooper/FormAircraftCollection.Designer.cs b/Stormtrooper/Stormtrooper/FormAircraftCollection.Designer.cs
index f11846b..13b8629 100644
--- a/Stormtrooper/Stormtrooper/FormAircraftCollection.Designer.cs
+++ b/Stormtrooper/Stormtrooper/FormAircraftCollection.Designer.cs
@@ -29,6 +29,15 @@
         private void InitializeComponent()
         {
             groupBoxTools = new GroupBox();
+            buttonCreateCompany = new Button();
+            panelStorage = new Panel();
+            buttonCollectionDel = new Button();
+            listBoxCollection = new ListBox();
+            buttonCollectionAdd = new Button();
+            radioButtonList = new RadioButton();
+            radioButtonMassive = new RadioButton();
+            textBoxCollectionName = new TextBox();
+            labelCollectionName = new Label();
             buttonRefresh = new Button();
             buttonGoToCheck = new Button();
             buttonRemoveAircraft = new Button();
@@ -37,18 +46,18 @@
             buttonAddAiracft = new Button();
             comboBoxSelectorCompany = new ComboBox();
             pictureBox = new PictureBox();
+            panelCompanyTools = new Panel();
             groupBoxTools.SuspendLayout();
+            panelStorage.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).BeginInit();
+            panelCompanyTools.SuspendLayout();
             SuspendLayout();
             // 
             // groupBoxTools
             // 
-            groupBoxTools.Controls.Add(buttonRefresh);
-            groupBoxTools.Controls.Add(buttonGoToCheck);
-            groupBoxTools.Controls.Add(buttonRemoveAircraft);
-            groupBoxTools.Controls.Add(maskedTextBox);
-            groupBoxTools.Controls.Add(buttonAddStormtrooper);
-            groupBoxTools.Controls.Add(buttonAddAiracft);
+            groupBoxTools.Controls.Add(panelCompanyTools);
+            groupBoxTools.Controls.Add(buttonCreateCompany);
+            groupBoxTools.Controls.Add(panelStorage);
             groupBoxTools.Controls.Add(comboBoxSelectorCompany);
             groupBoxTools.Dock = DockStyle.Right;
             groupBoxTools.Location = new Point(980, 0);
@@ -59,10 +68,102 @@
             groupBoxTools.Tag = "";
             groupBoxTools.Text = "Инструменты";
             // 
+            // buttonCreateCompany
+            // 
+            buttonCreateCompany.Location = new Point(6, 356);
+            buttonCreateCompany.Name = "buttonCreateCompany";
+            buttonCreateCompany.Size = new Size(252, 29);
+            buttonCreateCompany.TabIndex = 8;
+            buttonCreateCompany.Text = "Создать компанию";
+            buttonCreateCompany.UseVisualStyleBackColor = true;
+            buttonCreateCompany.Click += ButtonCreateCompany_Click;
+            // 
+            // panelStorage
+            // 
+            panelStorage.Controls.Add(buttonCollectionDel);
+            panelStorage.Controls.Add(listBoxCollection);
+            panelStorage.Controls.Add(buttonCollectionAdd);
+            panelStorage.Controls.Add(radioButtonList);
+            panelStorage.Controls.Add(radioButtonMassive);
+            panelStorage.Controls.Add(textBoxCollectionName);
+            panelStorage.Controls.Add(labelCollectionName);
+            panelStorage.Dock = DockStyle.Top;
+            panelStorage.Location = new Point(3, 23);
+            panelStorage.Name = "panelStorage";
+            panelStorage.Size = new Size(258, 284);
+            panelStorage.TabIndex = 7;
+            // 
+            // buttonCollectionDel
+            // 
+            buttonCollectionDel.Location = new Point(3, 249);
+            buttonCollectionDel.Name = "buttonCollectionDel";
+            buttonCollectionDel.Size = new Size(252, 29);
+            buttonCollectionDel.TabIndex = 6;
+            buttonCollectionDel.Text = "Удалить коллекцию";
+            buttonCollectionDel.UseVisualStyleBackColor = true;
+            buttonCollectionDel.Click += ButtonCollectionDel_Click;
+            // 
+            // listBoxCollection
+            // 
+            listBoxCollection.FormattingEnabled = true;
+            listBoxCollection.ItemHeight = 20;
+            listBoxCollection.Location = new Point(3, 139);
+            listBoxCollection.Name = "listBoxCollection";
+            listBoxCollection.Size = new Size(252, 104);
+            listBoxCollection.TabIndex = 5;
+            // 
+            // buttonCollectionAdd
+            // 
+            buttonCollectionAdd.Location = new Point(3, 104);
+            buttonCollectionAdd.Name = "buttonCollectionAdd";
+            buttonCollectionAdd.Size = new Size(252, 29);
+            buttonCollectionAdd.TabIndex = 4;
+            buttonCollectionAdd.Text = "Добавить коллекцию";
+            buttonCollectionAdd.UseVisualStyleBackColor = true;
+            buttonCollectionAdd.Click += ButtonCollectionAdd_Click;
+            // 
+            // radioButtonList
+            // 
+            radioButtonList.AutoSize = true;
+            radioButtonList.Location = new Point(126, 74);
+            radioButtonList.Name = "radioButtonList";
+            radioButtonList.Size = new Size(80, 24);
+            radioButtonList.TabIndex = 3;
+            radioButtonList.TabStop = true;
+            radioButtonList.Text = "Список";
+            radioButtonList.UseVisualStyleBackColor = true;
+            // 
+            // radioButtonMassive
+            // 
+            radioButtonMassive.AutoSize = true;
+            radioButtonMassive.Location = new Point(38, 74);
+            radioButtonMassive.Name = "radioButtonMassive";
+            radioButtonMassive.Size = new Size(82, 24);
+            radioButtonMassive.TabIndex = 2;
+            radioButtonMassive.TabStop = true;
+            radioButtonMassive.Text = "Массив";
+            radioButtonMassive.UseVisualStyleBackColor = true;
+            // 
+            // textBoxCollectionName
+            // 
+            textBoxCollectionName.Location = new Point(3, 37);
+            textBoxCollectionName.Name = "textBoxCollectionName";
+            textBoxCollectionName.Size = new Size(252, 27);
+            textBoxCollectionName.TabIndex = 1;
+            // 
+            // labelCollectionName
+            // 
+            labelCollectionName.AutoSize = true;
+            labelCollectionName.Location = new Point(50, 14);
+            labelCollectionName.Name = "labelCollectionName";
+            labelCollectionName.Size = new Size(158, 20);
+            labelCollectionName.TabIndex = 0;
+            labelCollectionName.Text = "Название коллекции:";
+            // 
             // buttonRefresh
             // 
             buttonRefresh.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            buttonRefresh.Location = new Point(6, 601);
+            buttonRefresh.Location = new Point(3, 224);
             buttonRefresh.Name = "buttonRefresh";
             buttonRefresh.Size = new Size(252, 41);
             buttonRefresh.TabIndex = 6;
@@ -73,7 +174,7 @@
             // buttonGoToCheck
             // 
             buttonGoToCheck.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            buttonGoToCheck.Location = new Point(6, 493);
+            buttonGoToCheck.Location = new Point(3, 177);
             buttonGoToCheck.Name = "buttonGoToCheck";
             buttonGoToCheck.Size = new Size(252, 41);
             buttonGoToCheck.TabIndex = 5;
@@ -84,7 +185,7 @@
             // buttonRemoveAircraft
             // 
             buttonRemoveAircraft.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            buttonRemoveAircraft.Location = new Point(6, 323);
+            buttonRemoveAircraft.Location = new Point(3, 130);
             buttonRemoveAircraft.Name = "buttonRemoveAircraft";
             buttonRemoveAircraft.Size = new Size(252, 41);
             buttonRemoveAircraft.TabIndex = 4;
@@ -95,7 +196,7 @@
             // maskedTextBox
             // 
             maskedTextBox.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            maskedTextBox.Location = new Point(6, 274);
+            maskedTextBox.Location = new Point(3, 97);
             maskedTextBox.Mask = "00";
             maskedTextBox.Name = "maskedTextBox";
             maskedTextBox.Size = new Size(252, 27);
@@ -105,7 +206,7 @@
             // buttonAddStormtrooper
             // 
             buttonAddStormtrooper.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            buttonAddStormtrooper.Location = new Point(6, 172);
+            buttonAddStormtrooper.Location = new Point(3, 50);
             buttonAddStormtrooper.Name = "buttonAddStormtrooper";
             buttonAddStormtrooper.Size = new Size(252, 41);
             buttonAddStormtrooper.TabIndex = 2;
@@ -116,7 +217,7 @@
             // buttonAddAiracft
             // 
             buttonAddAiracft.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
-            buttonAddAiracft.Location = new Point(6, 116);
+            buttonAddAiracft.Location = new Point(3, 3);
             buttonAddAiracft.Name = "buttonAddAiracft";
             buttonAddAiracft.Size = new Size(252, 41);
             buttonAddAiracft.TabIndex = 1;
@@ -130,7 +231,7 @@
             comboBoxSelectorCompany.DropDownStyle = ComboBoxStyle.DropDownList;
             comboBoxSelectorCompany.FormattingEnabled = true;
             comboBoxSelectorCompany.Items.AddRange(new object[] { "Хранилище" });
-            comboBoxSelectorCompany.Location = new Point(6, 26);
+            comboBoxSelectorCompany.Location = new Point(6, 322);
             comboBoxSelectorCompany.Name = "comboBoxSelectorCompany";
             comboBoxSelectorCompany.Size = new Size(252, 28);
             comboBoxSelectorCompany.TabIndex = 0;
@@ -145,6 +246,20 @@
             pictureBox.TabIndex = 1;
             pictureBox.TabStop = false;
             // 
+            // panelCompanyTools
+            // 
+            panelCompanyTools.Controls.Add(buttonAddStormtrooper);
+            panelCompanyTools.Controls.Add(buttonAddAiracft);
+            panelCompanyTools.Controls.Add(buttonRefresh);
+            panelCompanyTools.Controls.Add(maskedTextBox);
+            panelCompanyTools.Controls.Add(buttonGoToCheck);
+            panelCompanyTools.Controls.Add(buttonRemoveAircraft);
+            panelCompanyTools.Enabled = false;
+            panelCompanyTools.Location = new Point(3, 391);
+            panelCompanyTools.Name = "panelCompanyTools";
+            panelCompanyTools.Size = new Size(258, 286);
+            panelCompanyTools.TabIndex = 9;
+            // 
             // FormAircraftCollection
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
@@ -155,8 +270,11 @@
             Name = "FormAircraftCollection";
             Text = "Коллекция самолетов";
             groupBoxTools.ResumeLayout(false);
-            groupBoxTools.PerformLayout();
+            panelStorage.ResumeLayout(false);
+            panelStorage.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).EndInit();
+            panelCompanyTools.ResumeLayout(false);
+            panelCompanyTools.PerformLayout();
             ResumeLayout(false);
         }
 
@@ -171,5 +289,15 @@
         private PictureBox pictureBox;
         private Button buttonRefresh;
         private Button buttonGoToCheck;
+        private Panel panelStorage;
+        private TextBox textBoxCollectionName;
+        private Label labelCollectionName;
+        private RadioButton radioButtonList;
+        private RadioButton radioButtonMassive;
+        private Button buttonCreateCompany;
+        private Button buttonCollectionDel;
+        private ListBox listBoxCollection;
+        private Button buttonCollectionAdd;
+        private Panel panelCompanyTools;
     }
 }
\ No newline at end of file
diff --git a/Stormtrooper/Stormtrooper/FormAircraftCollection.cs b/Stormtrooper/Stormtrooper/FormAircraftCollection.cs
index 796c0d6..fe42575 100644
--- a/Stormtrooper/Stormtrooper/FormAircraftCollection.cs
+++ b/Stormtrooper/Stormtrooper/FormAircraftCollection.cs
@@ -4,6 +4,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
+using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Linq;
 using System.Text;
@@ -14,27 +15,28 @@ namespace Stormtrooper;
 
 public partial class FormAircraftCollection : Form
 {
+    /// <summary>
+    /// Хранилище коллекций
+    /// </summary>
+    private readonly StorageCollection<DrawningAircraft> _storageCollection;
+
     /// <summary>
     /// Компания
     /// </summary>
-    private AbstractCompany? _company = null;
+    private AbstractCompany? _company;
+
     /// <summary>
     /// Конструктор
     /// </summary>
     public FormAircraftCollection()
     {
         InitializeComponent();
+        _storageCollection = new();
     }
 
     private void ComboBoxSelectorCompany_SelectedIndexChanged(object sender, EventArgs e)
     {
-        switch (comboBoxSelectorCompany.Text)
-        {
-            case "Хранилище":
-                _company = new AircraftHangarService(pictureBox.Width,
-                pictureBox.Height, new MassiveGenericObjects<DrawningAircraft>());
-                break;
-        }
+        panelCompanyTools.Enabled = false;
     }
 
     /// <summary>
@@ -56,7 +58,7 @@ public partial class FormAircraftCollection : Form
                 break;
             case nameof(DrawningStormtrooper):
                 drawningAircraft = new DrawningStormtrooper(random.Next(100, 300), random.Next(1000, 3000),
-            GetColor(random),GetColor(random),Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)));
+            GetColor(random), GetColor(random), Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)));
                 break;
             default:
                 return;
@@ -161,4 +163,103 @@ public partial class FormAircraftCollection : Form
 
         pictureBox.Image = _company.Show();
     }
+
+    /// <summary>
+    /// Добавление коллекции
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void ButtonCollectionAdd_Click(object sender, EventArgs e)
+    {
+
+        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)
+        {
+            collectionType = CollectionType.Massive;
+        }
+        else if (radioButtonList.Checked)
+        {
+            collectionType = CollectionType.List;
+        }
+        _storageCollection.AddCollection(textBoxCollectionName.Text, collectionType);
+        RerfreshListBoxItems();
+    }
+
+    /// <summary>
+    /// Удаление коллекции 
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void ButtonCollectionDel_Click(object sender, EventArgs e)
+    {
+        // TODO прописать логику удаления элемента из коллекции
+        // нужно убедиться, что есть выбранная коллекция
+        // спросить у пользователя через MessageBox, что он подтверждает, что хочет удалить запись
+        // удалить и обновить ListBox
+        if (listBoxCollection.SelectedIndex < 0 || listBoxCollection.SelectedItem == null)
+        {
+            MessageBox.Show("Коллекция не выбрана");
+            return;
+        }
+        if (MessageBox.Show("Удалить коллекцию?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
+        {
+            return;
+        }
+        _storageCollection.DelCollection(listBoxCollection.SelectedItem.ToString());
+        RerfreshListBoxItems();
+
+    }
+
+    /// <summary>
+    /// Создание компании
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void ButtonCreateCompany_Click(object sender, EventArgs e)
+    {
+        if (listBoxCollection.SelectedIndex < 0 || listBoxCollection.SelectedItem == null)
+        {
+            MessageBox.Show("Коллекция не выбрана");
+            return;
+        }
+
+        ICollectionGenericObjects<DrawningAircraft>? collection = _storageCollection[listBoxCollection.SelectedItem.ToString() ?? string.Empty];
+        if (collection == null)
+        {
+            MessageBox.Show("Коллекция не проинициализирована");
+            return;
+        }
+
+        switch (comboBoxSelectorCompany.Text)
+        {
+            case "Хранилище":
+                _company = new AircraftHangarService(pictureBox.Width, pictureBox.Height, collection);
+                break;
+        }
+
+        panelCompanyTools.Enabled = true;
+        RerfreshListBoxItems();
+
+    }
+    /// <summary>
+    /// Обновление списка в listBoxCollection
+    /// </summary>
+    private void RerfreshListBoxItems()
+    {
+        listBoxCollection.Items.Clear();
+        for (int i = 0; i < _storageCollection.Keys?.Count; ++i)
+        {
+            string? colName = _storageCollection.Keys?[i];
+            if (!string.IsNullOrEmpty(colName))
+            {
+                listBoxCollection.Items.Add(colName);
+            }
+        }
+    }
 }