Протестировал

Cop.Borovkov.Var3/Cop.Borovkov.Var3.sln

@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.10.35122.118
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cop.Borovkov.Var3", "Cop.Borovkov.Var3\Cop.Borovkov.Var3.csproj", "{A8604186-0CDE-4504-805B-46104141269A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Cop.Borovkov.Var3", "Cop.Borovkov.Var3\Cop.Borovkov.Var3.csproj", "{A8604186-0CDE-4504-805B-46104141269A}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestCustomComponents", "TestCustomComponents\TestCustomComponents.csproj", "{E2C46D08-ACCE-4547-922B-E92AD76D99C8}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +17,10 @@ Global
 		{A8604186-0CDE-4504-805B-46104141269A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A8604186-0CDE-4504-805B-46104141269A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A8604186-0CDE-4504-805B-46104141269A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E2C46D08-ACCE-4547-922B-E92AD76D99C8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E2C46D08-ACCE-4547-922B-E92AD76D99C8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E2C46D08-ACCE-4547-922B-E92AD76D99C8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E2C46D08-ACCE-4547-922B-E92AD76D99C8}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomDataTable.Designer.cs

@@ -0,0 +1,63 @@
+namespace Cop.Borovkov.Var3.Components
+{
+    partial class CustomDataTable
+    {
+        /// <summary> 
+        /// Обязательная переменная конструктора.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary> 
+        /// Освободить все используемые ресурсы.
+        /// </summary>
+        /// <param name="disposing">истинно, если управляемый ресурс должен быть удален; иначе ложно.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Код, автоматически созданный конструктором компонентов
+
+        /// <summary> 
+        /// Требуемый метод для поддержки конструктора — не изменяйте 
+        /// содержимое этого метода с помощью редактора кода.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            outDataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)outDataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // outDataGridView
+            // 
+            outDataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            outDataGridView.ColumnHeadersVisible = false;
+            outDataGridView.Dock = DockStyle.Fill;
+            outDataGridView.Location = new Point(0, 0);
+            outDataGridView.Name = "outDataGridView";
+            outDataGridView.RowHeadersVisible = false;
+            outDataGridView.RowHeadersWidth = 51;
+            outDataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            outDataGridView.Size = new Size(849, 396);
+            outDataGridView.TabIndex = 0;
+            // 
+            // CustomDataTable
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            Controls.Add(outDataGridView);
+            Name = "CustomDataTable";
+            Size = new Size(849, 396);
+            ((System.ComponentModel.ISupportInitialize)outDataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView outDataGridView;
+    }
+}

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomDataTable.cs

@@ -0,0 +1,104 @@
+using Cop.Borovkov.Var3.Models;
+
+namespace Cop.Borovkov.Var3.Components
+{
+    public partial class CustomDataTable : UserControl
+    {
+        private readonly List<string> _columnsFildsNames = new();
+
+        public CustomDataTable()
+        {
+            InitializeComponent();
+        }
+
+        public void ConfigureColumns(params CustomDataTableColumnParameter[] columnParameters)
+        {
+            outDataGridView.Columns.Clear();
+            _columnsFildsNames.Clear();
+
+            for (int i = 0; i < columnParameters.Length; i++)
+            {
+                outDataGridView.Columns
+                    .Add(columnParameters[i].HeaderName, columnParameters[i].HeaderName);
+
+                var column = outDataGridView.Columns[i];
+
+                column.Visible = columnParameters[i].Visible;
+                _columnsFildsNames.Add(column.Name);
+
+                if (columnParameters[i].Width != 0)
+                {
+                    column.Width = columnParameters[i].Width;
+                }
+                else
+                {
+                    column.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Отчистить таблицу
+        /// </summary>
+        public void Clear()
+            => outDataGridView.Rows.Clear();
+
+        /// <summary>
+        /// Индекс выбранной строки
+        /// </summary>
+        public int SelectedRow
+        {
+            get => outDataGridView.CurrentRow.Index;
+
+            set
+            {
+                outDataGridView.CurrentRow.Selected = false;
+                outDataGridView.Rows[value].Selected = true;
+            }
+        }
+
+        public TType? GetRow<TType>(int rowIndex)
+        {
+            Type type = typeof(TType);
+            var element = type.GetConstructor([])?.Invoke([]);
+
+            if (element is null)
+            {
+                return default;
+            }
+
+            var row = outDataGridView.Rows[rowIndex].Cells;
+
+            for (int i = 0; i < outDataGridView.ColumnCount; i++)
+            {
+                if (string.IsNullOrEmpty(_columnsFildsNames[i]))
+                {
+                    continue;
+                }
+                var field = type.GetProperty(_columnsFildsNames[i]);
+                field?.SetValue(element, row[i].Value);
+            }
+
+            return (TType)element;
+        }
+
+        public void Fill<TType>(IList<TType> insertValues)
+        {
+            Clear();
+
+            Type type = typeof(TType);
+
+            for (int i = 0; i < insertValues.Count(); ++i)
+            {
+                var row = insertValues[i];
+                outDataGridView.Rows.Add();
+
+                for (int j = 0; j < _columnsFildsNames.Count; ++j)
+                {
+                    outDataGridView.Rows[i].Cells[j].Value 
+                        = type.GetProperty(_columnsFildsNames[j])?.GetValue(row)!;
+                }
+            }
+        }
+    }
+}

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomDataTable.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomListBox.Designer.cs

@@ -31,22 +31,26 @@
             InerlistBox = new ListBox();
             SuspendLayout();
             // 
-            // inerlistBox
+            // InerlistBox
             // 
             InerlistBox.Dock = DockStyle.Fill;
             InerlistBox.FormattingEnabled = true;
+            InerlistBox.ItemHeight = 15;
             InerlistBox.Location = new Point(0, 0);
-            InerlistBox.Name = "inerlistBox";
+            InerlistBox.Margin = new Padding(3, 2, 3, 2);
-            InerlistBox.Size = new Size(150, 150);
+            InerlistBox.Name = "InerlistBox";
+            InerlistBox.Size = new Size(131, 112);
             InerlistBox.TabIndex = 0;
-            InerlistBox.ValueMemberChanged += InerlistBox_ValueMemberChanged;
+            InerlistBox.SelectedIndexChanged += InerlistBox_SelectedIndexChanged;
             // 
             // CustomListBox
             // 
-            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
             Controls.Add(InerlistBox);
+            Margin = new Padding(3, 2, 3, 2);
             Name = "CustomListBox";
+            Size = new Size(131, 112);
             ResumeLayout(false);
         }
 

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomListBox.cs

@@ -2,7 +2,7 @@
 {
     public partial class CustomListBox : UserControl
     {
-        private event EventHandler? _valueChanged;
+        private event EventHandler? _selectedChanged;
         private event Action<Exception>? _errorOccured;
 
         /// <summary>
@@ -17,8 +17,8 @@
         /// </summary>
         public event EventHandler ValueChanged
         {
-            add => _valueChanged += value;
+            add => _selectedChanged += value;
-            remove => _valueChanged -= value;
+            remove => _selectedChanged -= value;
         }
 
         /// <summary>
@@ -43,13 +43,19 @@
         /// <summary>
         /// Очистить список
         /// </summary>
-        public void Clear() => InerlistBox.Items.Clear();
+        public void Clear() 
+        {
+            InerlistBox.ClearSelected();
+            InerlistBox.DataSource = null;
+            InerlistBox.Items.Clear();
+            InerlistBox.Refresh();
+        }
 
-        private void InerlistBox_ValueMemberChanged(object sender, EventArgs e)
+        private void InerlistBox_SelectedIndexChanged(object sender, EventArgs e)
         {
             try
             {
-                _valueChanged?.Invoke(sender, e);
+                _selectedChanged?.Invoke(sender, e);
             }
             catch (Exception ex)
             {

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomNumericInputField.Designer.cs

@@ -35,7 +35,8 @@
             // isNullcheckBox
             // 
             isNullcheckBox.AutoSize = true;
-            isNullcheckBox.Location = new Point(3, 9);
+            isNullcheckBox.Location = new Point(3, 7);
+            isNullcheckBox.Margin = new Padding(3, 2, 3, 2);
             isNullcheckBox.Name = "isNullcheckBox";
             isNullcheckBox.Size = new Size(18, 17);
             isNullcheckBox.TabIndex = 0;
@@ -45,20 +46,22 @@
             // inputField
             // 
             inputField.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
-            inputField.Location = new Point(27, 3);
+            inputField.Location = new Point(24, 2);
+            inputField.Margin = new Padding(3, 2, 3, 2);
             inputField.Name = "inputField";
-            inputField.Size = new Size(197, 27);
+            inputField.Size = new Size(173, 23);
             inputField.TabIndex = 1;
-            inputField.DataContextChanged += InputField_DataContextChanged;
+            inputField.TextChanged += inputField_TextChanged;
             // 
             // CustomNumericInputField
             // 
-            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
             Controls.Add(inputField);
             Controls.Add(isNullcheckBox);
+            Margin = new Padding(3, 2, 3, 2);
             Name = "CustomNumericInputField";
-            Size = new Size(227, 34);
+            Size = new Size(199, 26);
             ResumeLayout(false);
             PerformLayout();
         }

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Components/CustomNumericInputField.cs

@@ -88,7 +88,7 @@ namespace Cop.Borovkov.Var3.Components
             }
         }
 
-        private void InputField_DataContextChanged(object sender, EventArgs e)
+        private void inputField_TextChanged(object sender, EventArgs e)
         {
             try
             {

Cop.Borovkov.Var3/Cop.Borovkov.Var3/Models/CustomDataTableColumnParameter.cs

@@ -0,0 +1,13 @@
+namespace Cop.Borovkov.Var3.Models
+{
+    public record CustomDataTableColumnParameter
+    {
+        public string HeaderName { get; init; } = string.Empty;
+
+        public int Width { get; init; } = 0;
+
+        public bool Visible { get; init; } = true;
+
+        public string PropertyName { get; init; } = string.Empty;
+    }
+}

Cop.Borovkov.Var3/TestCustomComponents/Forms/Form1.Designer.cs

@@ -0,0 +1,246 @@
+namespace TestCustomComponents
+{
+    partial class Form1
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            customDataTable1 = new Cop.Borovkov.Var3.Components.CustomDataTable();
+            customListBox1 = new Cop.Borovkov.Var3.Components.CustomListBox();
+            customNumericInputField1 = new Cop.Borovkov.Var3.Components.CustomNumericInputField();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            richTextBox1 = new RichTextBox();
+            button4 = new Button();
+            button5 = new Button();
+            button6 = new Button();
+            button7 = new Button();
+            button8 = new Button();
+            button9 = new Button();
+            button10 = new Button();
+            button11 = new Button();
+            button12 = new Button();
+            SuspendLayout();
+            // 
+            // customDataTable1
+            // 
+            customDataTable1.Location = new Point(297, 23);
+            customDataTable1.Name = "customDataTable1";
+            customDataTable1.Size = new Size(491, 212);
+            customDataTable1.TabIndex = 0;
+            // 
+            // customListBox1
+            // 
+            customListBox1.Location = new Point(12, 11);
+            customListBox1.Margin = new Padding(3, 2, 3, 2);
+            customListBox1.Name = "customListBox1";
+            customListBox1.Selected = "";
+            customListBox1.Size = new Size(164, 140);
+            customListBox1.TabIndex = 1;
+            // 
+            // customNumericInputField1
+            // 
+            customNumericInputField1.Location = new Point(12, 155);
+            customNumericInputField1.Margin = new Padding(3, 2, 3, 2);
+            customNumericInputField1.Name = "customNumericInputField1";
+            customNumericInputField1.Size = new Size(249, 32);
+            customNumericInputField1.TabIndex = 2;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(26, 309);
+            button1.Name = "button1";
+            button1.Size = new Size(94, 29);
+            button1.TabIndex = 3;
+            button1.Text = "button1";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(126, 309);
+            button2.Name = "button2";
+            button2.Size = new Size(94, 29);
+            button2.TabIndex = 4;
+            button2.Text = "button2";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(226, 309);
+            button3.Name = "button3";
+            button3.Size = new Size(94, 29);
+            button3.TabIndex = 5;
+            button3.Text = "button3";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // richTextBox1
+            // 
+            richTextBox1.Location = new Point(567, 241);
+            richTextBox1.Name = "richTextBox1";
+            richTextBox1.Size = new Size(125, 165);
+            richTextBox1.TabIndex = 6;
+            richTextBox1.Text = "";
+            // 
+            // button4
+            // 
+            button4.Location = new Point(698, 241);
+            button4.Name = "button4";
+            button4.Size = new Size(94, 29);
+            button4.TabIndex = 7;
+            button4.Text = "button4";
+            button4.UseVisualStyleBackColor = true;
+            button4.Click += button4_Click;
+            // 
+            // button5
+            // 
+            button5.Location = new Point(26, 344);
+            button5.Name = "button5";
+            button5.Size = new Size(94, 29);
+            button5.TabIndex = 8;
+            button5.Text = "button5";
+            button5.UseVisualStyleBackColor = true;
+            button5.Click += button5_Click;
+            // 
+            // button6
+            // 
+            button6.Location = new Point(126, 344);
+            button6.Name = "button6";
+            button6.Size = new Size(94, 29);
+            button6.TabIndex = 9;
+            button6.Text = "button6";
+            button6.UseVisualStyleBackColor = true;
+            button6.Click += button6_Click;
+            // 
+            // button7
+            // 
+            button7.Location = new Point(226, 344);
+            button7.Name = "button7";
+            button7.Size = new Size(94, 29);
+            button7.TabIndex = 10;
+            button7.Text = "button7";
+            button7.UseVisualStyleBackColor = true;
+            button7.Click += button7_Click;
+            // 
+            // button8
+            // 
+            button8.Location = new Point(26, 379);
+            button8.Name = "button8";
+            button8.Size = new Size(94, 29);
+            button8.TabIndex = 11;
+            button8.Text = "button8";
+            button8.UseVisualStyleBackColor = true;
+            button8.Click += button8_Click;
+            // 
+            // button9
+            // 
+            button9.Location = new Point(126, 377);
+            button9.Name = "button9";
+            button9.Size = new Size(94, 29);
+            button9.TabIndex = 12;
+            button9.Text = "button9";
+            button9.UseVisualStyleBackColor = true;
+            button9.Click += button9_Click;
+            // 
+            // button10
+            // 
+            button10.Location = new Point(226, 377);
+            button10.Name = "button10";
+            button10.Size = new Size(94, 29);
+            button10.TabIndex = 13;
+            button10.Text = "button10";
+            button10.UseVisualStyleBackColor = true;
+            button10.Click += button10_Click;
+            // 
+            // button11
+            // 
+            button11.Location = new Point(26, 414);
+            button11.Name = "button11";
+            button11.Size = new Size(94, 29);
+            button11.TabIndex = 14;
+            button11.Text = "button11";
+            button11.UseVisualStyleBackColor = true;
+            button11.Click += button11_Click;
+            // 
+            // button12
+            // 
+            button12.Location = new Point(126, 414);
+            button12.Name = "button12";
+            button12.Size = new Size(94, 29);
+            button12.TabIndex = 15;
+            button12.Text = "button12";
+            button12.UseVisualStyleBackColor = true;
+            button12.Click += button12_Click;
+            // 
+            // Form1
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(button12);
+            Controls.Add(button11);
+            Controls.Add(button10);
+            Controls.Add(button9);
+            Controls.Add(button8);
+            Controls.Add(button7);
+            Controls.Add(button6);
+            Controls.Add(button5);
+            Controls.Add(button4);
+            Controls.Add(richTextBox1);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(customNumericInputField1);
+            Controls.Add(customListBox1);
+            Controls.Add(customDataTable1);
+            Name = "Form1";
+            Text = "Form1";
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Cop.Borovkov.Var3.Components.CustomDataTable customDataTable1;
+        private Cop.Borovkov.Var3.Components.CustomListBox customListBox1;
+        private Cop.Borovkov.Var3.Components.CustomNumericInputField customNumericInputField1;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+        private RichTextBox richTextBox1;
+        private Button button4;
+        private Button button5;
+        private Button button6;
+        private Button button7;
+        private Button button8;
+        private Button button9;
+        private Button button10;
+        private Button button11;
+        private Button button12;
+    }
+}

Cop.Borovkov.Var3/TestCustomComponents/Forms/Form1.cs

@@ -0,0 +1,122 @@
+using TestCustomComponents.Models;
+
+namespace TestCustomComponents
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void Log(string message)
+        {
+            richTextBox1.Text = $"{richTextBox1.Text}\n{message}";
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            customListBox1.AnErrorOccurred += ex => Log(ex.Message);
+            customListBox1.ValueChanged += (obj, sender) => Log($"Selected1 is {customListBox1.Selected}");
+            customNumericInputField1.AnErrorOccurred += ex => Log(ex.Message);
+            customNumericInputField1.NumericInputChanged += (obj, sender) => Log("Test 4 ok");
+
+            customListBox1.FillValues(["hello", "world", "123", "321"]);
+
+            customListBox1.Selected = "123";
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            customListBox1.Clear();
+            customListBox1.Selected = "234";
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            Log($"Selected2 is {customNumericInputField1.Value?.ToString() ?? "null"}");
+        }
+
+        private void button4_Click(object sender, EventArgs e)
+        {
+            richTextBox1.Clear();
+        }
+
+        private void button5_Click(object sender, EventArgs e)
+        {
+            customNumericInputField1.Value = 3333;
+        }
+
+        private void button6_Click(object sender, EventArgs e)
+        {
+            customNumericInputField1.Value = null;
+        }
+
+        private void button7_Click(object sender, EventArgs e)
+        {
+            customDataTable1.ConfigureColumns(
+                new()
+                {
+                    HeaderName = "Id",
+                    PropertyName = nameof(TestModel.Id),
+                    Visible = false,
+                },
+                new()
+                {
+                    HeaderName = "Name",
+                    PropertyName = nameof(TestModel.Name),
+                    Width = 100,
+                },
+                new()
+                {
+                    HeaderName = "Age",
+                    PropertyName = nameof(TestModel.Age),
+                }
+                );
+        }
+
+        private void button8_Click(object sender, EventArgs e)
+        {
+            customDataTable1.Fill<TestModel>([
+                new(){
+                    Id = 1,
+                    Name = "Vasya",
+                    Age = 5,
+                },
+                new()
+                {
+                    Id = 2,
+                    Name = "Vilthare",
+                    Age = 3,
+                },
+                new()
+                {
+                    Id = 3,
+                    Name = "MOMO",
+                    Age = 10,
+                },
+                ]);
+        }
+
+        private void button9_Click(object sender, EventArgs e)
+        {
+            customDataTable1.Clear();
+        }
+
+        private void button10_Click(object sender, EventArgs e)
+        {
+            Log($"selected3 {customDataTable1.SelectedRow}");
+        }
+
+        private void button11_Click(object sender, EventArgs e)
+        {
+            customDataTable1.SelectedRow = customNumericInputField1.Value!.Value;
+        }
+
+        private void button12_Click(object sender, EventArgs e)
+        {
+            var elem = customDataTable1.GetRow<TestModel>(customDataTable1.SelectedRow)!;
+            Log($"Selected: id={elem.Id} name={elem.Name} age={elem.Age}");
+        }
+    }
+}

Cop.Borovkov.Var3/TestCustomComponents/Forms/Form1.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Cop.Borovkov.Var3/TestCustomComponents/Models/TestModel.cs

@@ -0,0 +1,11 @@
+namespace TestCustomComponents.Models
+{
+    public class TestModel
+    {
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+
+        public int Age { get; set; }
+    }
+}

Cop.Borovkov.Var3/TestCustomComponents/Program.cs

@@ -0,0 +1,17 @@
+namespace TestCustomComponents
+{
+    internal static class Program
+    {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            // To customize application configuration such as set high DPI settings or default font,
+            // see https://aka.ms/applicationconfiguration.
+            ApplicationConfiguration.Initialize();
+            Application.Run(new Form1());
+        }
+    }
+}

Cop.Borovkov.Var3/TestCustomComponents/TestCustomComponents.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Cop.Borovkov.Var3\Cop.Borovkov.Var3.csproj" />
+  </ItemGroup>
+
+</Project>