---

using System;
using System.Drawing;
using System.Windows.Forms;

namespace lr16
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Заполняем ComboBox коэффициентами
            string[] coeffs = { "1.0", "1.5", "2.0", "2.5", "3.0" };
            cbA.Items.AddRange(coeffs);
            cbB.Items.AddRange(coeffs);
            cbC.Items.AddRange(coeffs);

            cbA.SelectedIndex = 2; // 2.0
            cbB.SelectedIndex = 1; // 1.5
            cbC.SelectedIndex = 3; // 2.5

            rbMethod1.Checked = true;
            tbX.Text = "4";
            tbY.Text = "5";
            tbZ.Text = "2";
        }

        private void btnCalculate_Click(object sender, EventArgs e)
        {
            try
            {
                double a = double.Parse(cbA.Text);
                double b = double.Parse(cbB.Text);
                double c = double.Parse(cbC.Text);
                double x = double.Parse(tbX.Text);
                double y = double.Parse(tbY.Text);
                double z = double.Parse(tbZ.Text);

                if (!cbIncludeZ.Checked)
                    z = 0;

                double W = 0;
                string method = "";

                if (rbMethod1.Checked)
                {
                    W = a * x + b * y + c * z;
                    method = "Способ 1 (прямой)";
                }
                else
                {
                    double[] coeffs = { a, b, c };
                    double[] vars = { x, y, z };
                    for (int i = 0; i < 3; i++)
                        W += coeffs[i] * vars[i];

                    method = "Способ 2 (цикл)";
                }

                string resultStr = $"{method} → W = {W:F4}";
                lbHistory.Items.Add(resultStr);

                lblResult.Text = $"Результат: W = {W:F4}";
                lblResult.ForeColor = Color.DarkGreen;
            }
            catch
            {
                MessageBox.Show("Ошибка! Проверьте корректность введённых чисел.", 
                    "Ошибка ввода", MessageBoxButtons.OK, MessageBoxIcon.Error);
                lblResult.ForeColor = Color.Red;
                lblResult.Text = "Ошибка ввода данных!";
            }
        }

        private void rbMethod1_CheckedChanged(object sender, EventArgs e)
        {
            if (rbMethod1.Checked)
                lblMethodInfo.Text = "Выбран способ: Прямое вычисление";
        }

        private void rbMethod2_CheckedChanged(object sender, EventArgs e)
        {
            if (rbMethod2.Checked)
                lblMethodInfo.Text = "Выбран способ: Через массив и цикл";
        }

        private void cbIncludeZ_CheckedChanged(object sender, EventArgs e)
        {
            tbZ.Enabled = cbIncludeZ.Checked;
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("Очистить историю расчётов?", "Подтверждение", 
                MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
            {
                lbHistory.Items.Clear();
            }
        }
    }
}
namespace lr16
{
    partial class Form1
    {
        private System.ComponentModel.IContainer components = null;

        private Label lblTitle;
        private GroupBox gbMethod;
        private Label lblMethodInfo;
        private RadioButton rbMethod1;
        private RadioButton rbMethod2;

        private GroupBox gbCoefficients;
        private Label lblA, lblB, lblC;
        private ComboBox cbA, cbB, cbC;

        private GroupBox gbVariables;
        private Label lblX, lblY, lblZ;
        private TextBox tbX, tbY, tbZ;
        private CheckBox cbIncludeZ;

        private Button btnCalculate;
        private Button btnClear;

        private GroupBox gbResult;
        private Label lblResult;

        private ListBox lbHistory;
        private ToolTip toolTip1;

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.toolTip1 = new ToolTip(this.components);

            // Основные настройки формы
            this.ClientSize = new System.Drawing.Size(740, 630);
            this.Text = "Лабораторная работа №16 — Вариант 10";
            this.StartPosition = FormStartPosition.CenterScreen;
            this.FormBorderStyle = FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.BackColor = System.Drawing.Color.WhiteSmoke;

            // Заголовок
            this.lblTitle = new Label();
            this.lblTitle.Text = "Лабораторная работа №16\nМеханизм событий. Простые элементы управления\nВариант 10";
            this.lblTitle.Font = new System.Drawing.Font("Segoe UI", 15F, System.Drawing.FontStyle.Bold);
            this.lblTitle.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
            this.lblTitle.Location = new System.Drawing.Point(20, 10);
            this.lblTitle.Size = new System.Drawing.Size(700, 80);
            this.lblTitle.ForeColor = System.Drawing.Color.DarkBlue;

            // Группа выбора метода
            this.gbMethod = new GroupBox();
            this.gbMethod.Text = "Способ расчёта";
            this.gbMethod.Location = new System.Drawing.Point(30, 100);
            this.gbMethod.Size = new System.Drawing.Size(680, 110);
            this.gbMethod.Font = new System.Drawing.Font("Segoe UI", 10F, System.Drawing.FontStyle.Bold);

            this.lblMethodInfo = new Label();
            this.lblMethodInfo.Text = "Выбран способ: Прямое вычисление";
            this.lblMethodInfo.Location = new System.Drawing.Point(20, 25);
            this.lblMethodInfo.Size = new System.Drawing.Size(400, 20);

            this.rbMethod1 = new RadioButton();
            this.rbMethod1.Text = "Способ 1: Прямое вычисление  W = a·x + b·y + c·z";
            this.rbMethod1.Location = new System.Drawing.Point(20, 50);
            this.rbMethod1.AutoSize = true;
            this.rbMethod1.CheckedChanged += new System.EventHandler(this.rbMethod1_CheckedChanged);

            this.rbMethod2 = new RadioButton();
            this.rbMethod2.Text = "Способ 2: Через массив коэффициентов и цикл for";
            this.rbMethod2.Location = new System.Drawing.Point(20, 75);
            this.rbMethod2.AutoSize = true;
            this.rbMethod2.CheckedChanged += new System.EventHandler(this.rbMethod2_CheckedChanged);

            this.gbMethod.Controls.Add(this.lblMethodInfo);
            this.gbMethod.Controls.Add(this.rbMethod1);
            this.gbMethod.Controls.Add(this.rbMethod2);

            // Группа коэффициентов
            this.gbCoefficients = new GroupBox();
            this.gbCoefficients.Text = "Коэффициенты";
            this.gbCoefficients.Location = new System.Drawing.Point(30, 220);
            this.gbCoefficients.Size = new System.Drawing.Size(340, 140);
            this.gbCoefficients.Font = new System.Drawing.Font("Segoe UI", 10F, System.Drawing.FontStyle.Bold);

            this.lblA = new Label() { Text = "a =", Location = new Point(20, 35), AutoSize = true };
            this.cbA = new ComboBox() { Location = new Point(70, 32), Size = new Size(110, 25), DropDownStyle = ComboBoxStyle.DropDownList };

            this.lblB = new Label() { Text = "b =", Location = new Point(20, 70), AutoSize = true };
            this.cbB = new ComboBox() { Location = new Point(70, 67), Size = new Size(110, 25), DropDownStyle = ComboBoxStyle.DropDownList };

            this.lblC = new Label() { Text = "c =", Location = new Point(20, 105), AutoSize = true };
            this.cbC = new ComboBox() { Location = new Point(70, 102), Size = new Size(110, 25), DropDownStyle = ComboBoxStyle.DropDownList };

            this.gbCoefficients.Controls.Add(this.lblA);
            this.gbCoefficients.Controls.Add(this.cbA);
            this.gbCoefficients.Controls.Add(this.lblB);
            this.gbCoefficients.Controls.Add(this.cbB);
            this.gbCoefficients.Controls.Add(this.lblC);
            this.gbCoefficients.Controls.Add(this.cbC);

            // Группа переменных
            this.gbVariables = new GroupBox();
            this.gbVariables.Text = "Переменные";
            this.gbVariables.Location = new System.Drawing.Point(390, 220);
            this.gbVariables.Size = new System.Drawing.Size(320, 140);
            this.gbVariables.Font = new System.Drawing.Font("Segoe UI", 10F, System.Drawing.FontStyle.Bold);

            this.lblX = new Label() { Text = "x =", Location = new Point(20, 35), AutoSize = true };
            this.tbX = new TextBox() { Location = new Point(70, 32), Size = new Size(110, 25), TextAlign = HorizontalAlignment.Center };

            this.lblY = new Label() { Text = "y =", Location = new Point(20, 70), AutoSize = true };
            this.tbY = new TextBox() { Location = new Point(70, 67), Size = new Size(110, 25), TextAlign = HorizontalAlignment.Center };

            this.lblZ = new Label() { Text = "z =", Location = new Point(20, 105), AutoSize = true };
            this.tbZ = new TextBox() { Location = new Point(70, 102), Size = new Size(110, 25), TextAlign = HorizontalAlignment.Center };

            this.cbIncludeZ = new CheckBox();
            this.cbIncludeZ.Text = "Включить z в расчёт";
            this.cbIncludeZ.Location = new Point(20, 135);
            this.cbIncludeZ.Checked = true;
            this.cbIncludeZ.CheckedChanged += new System.EventHandler(this.cbIncludeZ_CheckedChanged);

            this.gbVariables.Controls.Add(this.lblX);
            this.gbVariables.Controls.Add(this.tbX);
            this.gbVariables.Controls.Add(this.lblY);
            this.gbVariables.Controls.Add(this.tbY);
            this.gbVariables.Controls.Add(this.lblZ);
            this.gbVariables.Controls.Add(this.tbZ);
            this.gbVariables.Controls.Add(this.cbIncludeZ);

            // Кнопки
            this.btnCalculate = new Button();
            this.btnCalculate.Text = "Вычислить";
            this.btnCalculate.Location = new System.Drawing.Point(30, 380);
            this.btnCalculate.Size = new System.Drawing.Size(180, 50);
            this.btnCalculate.Font = new System.Drawing.Font("Segoe UI", 11F, System.Drawing.FontStyle.Bold);
            this.btnCalculate.BackColor = System.Drawing.Color.FromArgb(0, 122, 204);
            this.btnCalculate.ForeColor = System.Drawing.Color.White;
            this.btnCalculate.Click += new System.EventHandler(this.btnCalculate_Click);

            this.btnClear = new Button();
            this.btnClear.Text = "Очистить историю";
            this.btnClear.Location = new System.Drawing.Point(230, 380);
            this.btnClear.Size = new System.Drawing.Size(150, 50);
            this.btnClear.Click += new System.EventHandler(this.btnClear_Click);

            // Группа результата
            this.gbResult = new GroupBox();
            this.gbResult.Text = "Результат";
            this.gbResult.Location = new System.Drawing.Point(30, 445);
            this.gbResult.Size = new System.Drawing.Size(680, 80);
            this.gbResult.Font = new System.Drawing.Font("Segoe UI", 10F, System.Drawing.FontStyle.Bold);

            this.lblResult = new Label();
            this.lblResult.Text = "Результат: W = ?";
            this.lblResult.Location = new System.Drawing.Point(20, 30);
            this.lblResult.Size = new System.Drawing.Size(640, 35);
            this.lblResult.Font = new System.Drawing.Font("Segoe UI", 14F, System.Drawing.FontStyle.Bold);
            this.lblResult.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;

            this.gbResult.Controls.Add(this.lblResult);

            // История расчётов
            this.lbHistory = new ListBox();
            this.lbHistory.Location = new System.Drawing.Point(30, 540);
            this.lbHistory.Size = new System.Drawing.Size(680, 75);
            this.lbHistory.Font = new System.Drawing.Font("Consolas", 9.5F);

            // Добавляем все элементы на форму
            this.Controls.Add(this.lblTitle);
            this.Controls.Add(this.gbMethod);
            this.Controls.Add(this.gbCoefficients);
            this.Controls.Add(this.gbVariables);
            this.Controls.Add(this.btnCalculate);
            this.Controls.Add(this.btnClear);
            this.Controls.Add(this.gbResult);
            this.Controls.Add(this.lbHistory);
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }
    }
}