исправлен компонент 3

WinFormsLibrary1/Contracts/BindingModels/ProductBindingModel.cs

@@ -14,6 +14,6 @@ namespace Contracts.BindingModels
         public string Name { get; set; } = string.Empty;
         public string Description { get; set; } = string.Empty;
         public string Category { get; set; } = string.Empty;
-        public int CountOnStorage { get; set; }
+        public int? CountOnStorage { get; set; }
     }
 }

WinFormsLibrary1/Contracts/ViewModels/CategoryViewModel.cs

@@ -12,6 +12,6 @@ namespace Contracts.ViewModels
     {
         public int Id { get; set; }
         [DisplayName("Название")]
-        public string Name { get; set; } = string.Empty;
+        public string Name { get; set; } = "Название категории";
     }
 }

WinFormsLibrary1/Contracts/ViewModels/ProductViewModel.cs

@@ -9,9 +9,9 @@ using System.Threading.Tasks;
 
 namespace Contracts.ViewModels
 {
-    public class ProductViewModel : IProductModel
+    public class ProductViewModel
     {
-        public int Id { get; set; }
+        public string Id { get; set; }
         [DisplayName("Название")]
         public string Name { get; set; } = string.Empty;
         [DisplayName("Описание")]
@@ -19,6 +19,7 @@ namespace Contracts.ViewModels
         [DisplayName("Категория продукта")]
         public string Category { get; set; } = string.Empty;
         [DisplayName("Количество товаров на складе")]
-        public int CountOnStorage { get; set; }
+        public int? CountOnStorage { get; set; }
+        public string? CountOnStorageS { get; set; }
     }
 }

WinFormsLibrary1/DatabaseImplement/Migrations/20241112051510_nullableCountOnStorage.Designer.cs

@@ -0,0 +1,76 @@
+// <auto-generated />
+using System;
+using DatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20241112051510_nullableCountOnStorage")]
+    partial class nullableCountOnStorage
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DatabaseImplement.Models.Category", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Category")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int?>("CountOnStorage")
+                        .IsRequired()
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WinFormsLibrary1/DatabaseImplement/Migrations/20241112051510_nullableCountOnStorage.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class nullableCountOnStorage : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

WinFormsLibrary1/DatabaseImplement/Migrations/20241112052212_nullableCountOnStorage2.Designer.cs

@@ -0,0 +1,75 @@
+// <auto-generated />
+using System;
+using DatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20241112052212_nullableCountOnStorage2")]
+    partial class nullableCountOnStorage2
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DatabaseImplement.Models.Category", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Category")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int?>("CountOnStorage")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WinFormsLibrary1/DatabaseImplement/Migrations/20241112052212_nullableCountOnStorage2.cs

@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class nullableCountOnStorage2 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<int>(
+                name: "CountOnStorage",
+                table: "Products",
+                type: "integer",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "integer");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<int>(
+                name: "CountOnStorage",
+                table: "Products",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0,
+                oldClrType: typeof(int),
+                oldType: "integer",
+                oldNullable: true);
+        }
+    }
+}

WinFormsLibrary1/DatabaseImplement/Migrations/DatabaseModelSnapshot.cs

@@ -1,4 +1,5 @@
 // <auto-generated />
+using System;
 using DatabaseImplement;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -50,7 +51,7 @@ namespace DatabaseImplement.Migrations
                         .IsRequired()
                         .HasColumnType("text");
 
-                    b.Property<int>("CountOnStorage")
+                    b.Property<int?>("CountOnStorage")
                         .HasColumnType("integer");
 
                     b.Property<string>("Description")

WinFormsLibrary1/DatabaseImplement/Models/Product.cs

@@ -25,8 +25,7 @@ namespace DatabaseImplement.Models
         [Required]
         public string Category { get; private set; }
 
-        [Required]
+        public int? CountOnStorage {  get; private set; }
-        public int CountOnStorage {  get; private set; }
 
         public static Product? Create(ProductBindingModel model)
         {
@@ -54,11 +53,12 @@ namespace DatabaseImplement.Models
 
         public ProductViewModel GetViewModel => new()
         {
-            Id = Id,
+            Id = Id.ToString(),
             Name = Name,
             Description = Description,
             Category = Category,
             CountOnStorage = CountOnStorage,
+            CountOnStorageS = CountOnStorage != null ? CountOnStorage.ToString() : "Нет в наличии",
         };
     }
 }

WinFormsLibrary1/Models/Models/IProductModel.cs

@@ -12,6 +12,6 @@ namespace Models.Models
         string Name { get;}
         string Description { get;}
         string Category { get;}
-        int CountOnStorage { get;}
+        int? CountOnStorage { get;}
     }
 }

WinFormsLibrary1/WinFormsApp1/Form1.Designer.cs

@@ -18,8 +18,8 @@ namespace WinFormsApp1
         private void InitializeComponent()
         {
             comboBoxUserControl = new ComboBox();
-            listBoxUserControl = new ListBox();
             dateInputControl1 = new DateInputControl();
+            listBoxUserControl = new ListBoxUserControl();
             SuspendLayout();
             // 
             // comboBoxUserControl
@@ -30,29 +30,31 @@ namespace WinFormsApp1
             comboBoxUserControl.Size = new Size(160, 28);
             comboBoxUserControl.TabIndex = 0;
             // 
-            // listBoxUserControl
-            // 
-            listBoxUserControl.Location = new Point(13, 231);
-            listBoxUserControl.Margin = new Padding(4, 5, 4, 5);
-            listBoxUserControl.Name = "listBoxUserControl";
-            listBoxUserControl.Size = new Size(159, 144);
-            listBoxUserControl.TabIndex = 2;
-            // 
             // dateInputControl1
             // 
+            dateInputControl1.DateFormat = null;
             dateInputControl1.Location = new Point(13, 107);
             dateInputControl1.Margin = new Padding(4, 5, 4, 5);
             dateInputControl1.Name = "dateInputControl1";
             dateInputControl1.Size = new Size(166, 96);
             dateInputControl1.TabIndex = 3;
             // 
+            // listBoxUserControl
+            // 
+            listBoxUserControl.Location = new Point(13, 233);
+            listBoxUserControl.Margin = new Padding(4, 5, 4, 5);
+            listBoxUserControl.Name = "listBoxUserControl";
+            listBoxUserControl.SelectedIndex = -1;
+            listBoxUserControl.Size = new Size(365, 182);
+            listBoxUserControl.TabIndex = 4;
+            // 
             // Form1
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(400, 462);
-            Controls.Add(dateInputControl1);
             Controls.Add(listBoxUserControl);
+            Controls.Add(dateInputControl1);
             Controls.Add(comboBoxUserControl);
             Margin = new Padding(4, 5, 4, 5);
             Name = "Form1";
@@ -61,7 +63,7 @@ namespace WinFormsApp1
         }
 
         private ComboBox comboBoxUserControl;
-        private ListBox listBoxUserControl;
         private DateInputControl dateInputControl1;
+        private ListBoxUserControl listBoxUserControl;
     }
 }

WinFormsLibrary1/WinFormsApp1/Form1.cs

@@ -9,6 +9,19 @@ namespace WinFormsApp1
         public Form1()
         {
             InitializeComponent();
+            listBoxUserControl.SetParams("Id {Id} Íŕçâŕíčĺ {Name} Ôŕěčëč˙ {Familia}", '{', '}');
+
+            listBoxUserControl.AddObject<User>(new User(1, "status1", "Vova", "Stroev", 19, "FIST", 35000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status2", "Vladimir", "Stroev", 20, "FIST", 33000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
+            listBoxUserControl.AddObject<User>(new User(1, "status3", "Volodya", "Stroev", 21, "FIST", 39000.50));
         }
 
         private void ComboBoxUserControl_SelectedValueChanged(object sender, EventArgs e)
@@ -16,9 +29,9 @@ namespace WinFormsApp1
             MessageBox.Show($"ComboBox selected: {comboBoxUserControl.SelectedValue}");
         }
 
-        private void ListBoxUserControl_SelectedValueChanged(object sender, EventArgs e)
+        /*private void ListBoxUserControl_SelectedValueChanged(object sender, EventArgs e)
         {
             MessageBox.Show($"ListBox selected: {listBoxUserControl.SelectedValue}");
-        }
+        }*/
     }
 }

WinFormsLibrary1/WinFormsApp1/Forms.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Library14Petrushin" Version="1.0.0" />
+    <PackageReference Include="Library14Petrushin" Version="1.0.1" />
     <PackageReference Include="Library15Gerimovich" Version="1.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.10">
       <PrivateAssets>all</PrivateAssets>

WinFormsLibrary1/WinFormsApp1/MainForm.Designer.cs

@@ -29,26 +29,26 @@
         private void InitializeComponent()
         {
             components = new System.ComponentModel.Container();
-            _productListControl = new Library15Gerimovich.OutputTableResults();
+            _productTreeView = new Library14Petrushin.HierarchicalTreeView();
             wordTablesComponent1 = new Library15Gerimovich.WordTablesComponent(components);
             SuspendLayout();
             // 
-            // _productListControl
+            // _productTreeView
             // 
-            _productListControl.Dock = DockStyle.Fill;
+            _productTreeView.Dock = DockStyle.Fill;
-            _productListControl.Location = new Point(0, 0);
+            _productTreeView.Location = new Point(0, 0);
-            _productListControl.Margin = new Padding(3, 5, 3, 5);
+            _productTreeView.Margin = new Padding(3, 5, 3, 5);
-            _productListControl.Name = "_productListControl";
+            _productTreeView.Name = "_productTreeView";
-            _productListControl.SelectedRow = -1;
+            _productTreeView.SelectedNodeIndex = -1;
-            _productListControl.Size = new Size(487, 335);
+            _productTreeView.Size = new Size(292, 521);
-            _productListControl.TabIndex = 0;
+            _productTreeView.TabIndex = 0;
             // 
             // MainForm
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(487, 335);
+            ClientSize = new Size(292, 521);
-            Controls.Add(_productListControl);
+            Controls.Add(_productTreeView);
             Margin = new Padding(3, 4, 3, 4);
             Name = "MainForm";
             Text = "Учет продуктов в магазине";
@@ -58,7 +58,7 @@
 
         #endregion
 
-        private Library15Gerimovich.OutputTableResults _productListControl;
+        private Library14Petrushin.HierarchicalTreeView _productTreeView;
         private Library15Gerimovich.WordTablesComponent wordTablesComponent1;
     }
 }

WinFormsLibrary1/WinFormsApp1/MainForm.cs

@@ -31,25 +31,14 @@ namespace Forms
         private void LoadProducts()
         {
             var products = _productLogic.ReadList(null);
-            _productListControl.ClearGrid();
 
-            // Создаем список столбцов
+            var hierarchy = new List<string> { "Category", "CountOnStorageS", "Id", "Name" };
-            var columns = new List<ColumnInfo>
+            var alwaysNewBranch = new Dictionary<string, bool> { { "Name", true } };
-            {
+            _productTreeView.SetHierarchy(hierarchy, alwaysNewBranch);
-                new ColumnInfo("ID", 50, false, "Id"),
-                new ColumnInfo("Название", 150, true, "Name"),
-                new ColumnInfo("Описание", 200, true, "Description"),
-                new ColumnInfo("Категория продукта", 150, true, "Category"),
-                new ColumnInfo("Количество товаров на складе", 150, true, "CountOnStorage")
-            };
 
-            // Настраиваем столбцы в DataGridView
-            _productListControl.ConfigureColumns(columns);
-
-            // Добавляем строки
             foreach (var product in products)
             {
-                _productListControl.InsertValue(product);
+                _productTreeView.AddObjectToTree(product, "Name");
             }
         }
 
@@ -65,7 +54,7 @@ namespace Forms
             contextMenu.Items.Add("Создать документ с диаграммой", null, (s, ev) => CreateChartDocument());
 
             // Привязка контекстного меню к компоненту вывода списков
-            _productListControl.ContextMenuStrip = contextMenu;
+            _productTreeView.ContextMenuStrip = contextMenu;
 
             // Настройка горячих клавиш
             this.KeyDown += MainForm_KeyDown;
@@ -77,6 +66,34 @@ namespace Forms
             this.Controls.Add(toolStrip);
         }
 
+        private void MainForm_KeyDown(object sender, KeyEventArgs e)
+        {
+            if (e.Control)
+            {
+                switch (e.KeyCode)
+                {
+                    case Keys.A:
+                        AddProduct();
+                        break;
+                    case Keys.U:
+                        EditProduct();
+                        break;
+                    case Keys.D:
+                        DeleteProduct();
+                        break;
+                    case Keys.S:
+                        CreateDocument();
+                        break;
+                    case Keys.T:
+                        CreateTableDocument();
+                        break;
+                    case Keys.C:
+                        CreateChartDocument();
+                        break;
+                }
+            }
+        }
+
         private void OpenProductForm()
         {
             var form = new ProductForm(_productLogic, _categoryLogic);
@@ -128,37 +145,8 @@ namespace Forms
             return base.ProcessCmdKey(ref msg, keyData);
         }
 
-        private void MainForm_KeyDown(object sender, KeyEventArgs e)
-        {
-            if (e.Control)
-            {
-                switch (e.KeyCode)
-                {
-                    case Keys.A:
-                        AddProduct();
-                        break;
-                    case Keys.U:
-                        EditProduct();
-                        break;
-                    case Keys.D:
-                        DeleteProduct();
-                        break;
-                    case Keys.S:
-                        CreateDocument();
-                        break;
-                    case Keys.T:
-                        CreateTableDocument();
-                        break;
-                    case Keys.C:
-                        CreateChartDocument();
-                        break;
-                }
-            }
-        }
-
         private void AddProduct()
         {
-            // Логика добавления нового продукта
             var form = new ProductForm(_productLogic, _categoryLogic);
             if (form.ShowDialog() == DialogResult.OK)
             {
@@ -168,8 +156,11 @@ namespace Forms
 
         private void EditProduct()
         {
-            // Логика редактирования выбранного продукта
+            var selectedProduct = _productTreeView.GetSelectedObject<ProductViewModel>();
-            var selectedProduct = _productListControl.GetSelectedObject<ProductViewModel>();
+            selectedProduct = _productLogic.ReadElement(new ProductSearchModel
+            {
+                Id = int.Parse(selectedProduct.Id)
+            });
             if (selectedProduct != null)
             {
                 var form = new ProductForm(_productLogic, _categoryLogic, selectedProduct);
@@ -182,14 +173,17 @@ namespace Forms
 
         private void DeleteProduct()
         {
-            // Логика удаления выбранного продукта
+            var selectedProduct = _productTreeView.GetSelectedObject<ProductViewModel>();
-            var selectedProduct = _productListControl.GetSelectedObject<ProductViewModel>();
+            selectedProduct = _productLogic.ReadElement(new ProductSearchModel
+            {
+                Id = int.Parse(selectedProduct.Id)
+            });
             if (selectedProduct != null)
             {
                 var result = MessageBox.Show("Вы действительно хотите удалить этот продукт?", "Подтверждение", MessageBoxButtons.YesNo);
                 if (result == DialogResult.Yes)
                 {
-                    _productLogic.Delete(new ProductBindingModel { Id = selectedProduct.Id });
+                    _productLogic.Delete(new ProductBindingModel { Id = int.Parse(selectedProduct.Id) });
                     LoadProducts();
                 }
             }

WinFormsLibrary1/WinFormsApp1/ProductForm.cs

@@ -52,11 +52,11 @@ namespace Forms
         {
             var model = new ProductBindingModel
             {
-                Id = _product?.Id ?? 0,
+                Id = string.IsNullOrEmpty(_product?.Id) ? 0 : int.Parse(_product?.Id),
                 Name = textBoxName.Text,
                 Description = textBoxDescription.Text,
                 Category = _categoryComboBox.SelectedValue,
-                CountOnStorage = (int)_countOnStorageControl.DoubleValue
+                CountOnStorage = _countOnStorageControl.DoubleValue != null ? (int?)_countOnStorageControl.DoubleValue : null
             };
 
             if (_isNewProduct)

WinFormsLibrary1/WinFormsApp1/Program.cs

@@ -28,7 +28,7 @@ namespace WinFormsApp1
             ConfigureServices(services);
             _serviceProvider = services.BuildServiceProvider();
 
-            Application.Run(_serviceProvider.GetRequiredService<MainForm>());
+            Application.Run(_serviceProvider.GetRequiredService<Form1>());
         }
 
         private static void ConfigureServices(ServiceCollection services)
@@ -47,6 +47,7 @@ namespace WinFormsApp1
             services.AddTransient<CategoryForm>();
             services.AddTransient<ProductForm>();
             services.AddTransient<MainForm>();
+            services.AddTransient<Form1>();
         }
     }
 }

WinFormsLibrary1/WinFormsLibrary1/ListBox.Designer.cs

@@ -15,26 +15,27 @@
 
         private void InitializeComponent()
         {
-            this.listBox = new System.Windows.Forms.ListBox();
+            listBox = new ListBox();
-            this.SuspendLayout();
+            SuspendLayout();
             // 
             // listBox
             // 
-            this.listBox.FormattingEnabled = true;
+            listBox.FormattingEnabled = true;
-            this.listBox.Location = new System.Drawing.Point(0, 0);
+            listBox.Location = new Point(0, 0);
-            this.listBox.Name = "listBox";
+            listBox.Margin = new Padding(4, 5, 4, 5);
-            this.listBox.Size = new System.Drawing.Size(120, 95);
+            listBox.Name = "listBox";
-            this.listBox.TabIndex = 0;
+            listBox.Size = new Size(594, 144);
-            //this.listBox.SelectedIndexChanged += new System.EventHandler(this.listBox_SelectedIndexChanged);
+            listBox.TabIndex = 0;
             // 
             // ListBoxUserControl
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            AutoScaleDimensions = new SizeF(8F, 20F);
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            AutoScaleMode = AutoScaleMode.Font;
-            this.Controls.Add(this.listBox);
+            Controls.Add(listBox);
-            this.Name = "ListBoxUserControl";
+            Margin = new Padding(4, 5, 4, 5);
-            this.Size = new System.Drawing.Size(120, 95);
+            Name = "ListBoxUserControl";
-            this.ResumeLayout(false);
+            Size = new Size(598, 146);
+            ResumeLayout(false);
         }
 
         private System.Windows.Forms.ListBox listBox;

WinFormsLibrary1/WinFormsLibrary1/ListBox.cs

@@ -116,5 +116,30 @@ namespace WinFormsLibrary1
         {
             return member is PropertyInfo property ? property.PropertyType : ((FieldInfo)member).FieldType;
         }
+
+        public void AddObject<T>(T obj)
+        {
+            if (obj == null)
+            {
+                throw new ArgumentNullException("Добавляемый объект не существует!");
+            }
+            if (string.IsNullOrEmpty(_template) || !_startSymbol.HasValue || !_endSymbol.HasValue)
+            {
+                throw new Exception("Заполните макетную строку!");
+            }
+            if (!_template.Contains((char)_startSymbol) || !_template.Contains((char)_endSymbol))
+            {
+                throw new Exception("Макетная строка не содержит нужные элементы!");
+            }
+
+            string processedString = _template;
+            foreach (var property in obj.GetType().GetProperties())
+            {
+                string placeholder = $"{_startSymbol}{property.Name}{_endSymbol}";
+                processedString = processedString.Replace(placeholder, $"{_startSymbol}{property.GetValue(obj)}{_endSymbol}");
+            }
+
+            listBox.Items.Add(processedString);
+        }
     }
 }

WinFormsLibrary1/WinFormsLibrary1/WinFormsLibrary1.csproj

@@ -6,7 +6,7 @@
     <UseWindowsForms>true</UseWindowsForms>
     <ImplicitUsings>enable</ImplicitUsings>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-    <Version>1.0.2</Version>
+    <Version>1.0.3</Version>
     <Title>Library13StroevV</Title>
   </PropertyGroup>