PIbd-21_MasenkinMS_SUBD_RouteGuide/RouteGuide/RouteGuideView/FormRouteStop.cs

using RouteGuideContracts.BusinessLogicsContracts;
using RouteGuideContracts.ViewModels;
using RouteGuideDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace RouteGuideView
{
    /// <summary>
    /// Форма для привязки остановки к маршруту
    /// </summary>
    public partial class FormRouteStop : Form
    {
        /// <summary>
        /// Список остановок
        /// </summary>
        private readonly List<StopViewModel>? _list;
        
        /// <summary>
        /// Идентификатор остановки
        /// </summary>
        public object Id
        {
            get
            {
                return comboBoxStop.SelectedValue;
            }
            set
            {
                comboBoxStop.SelectedValue = value;
            }
        }

        /// <summary>
        /// Сущность "Остановка"
        /// </summary>
        public IStopModel<object>? StopModel
        {
            get
            {
                if (_list == null)
                {
                    return null;
                }
                foreach (var elem  in _list)
                {
                    if (elem.Id == Id)
                    {
                        return elem;
                    }
                }
                return null;
            }
        }

        /// <summary>
        /// Номер остановки в маршруте
        /// </summary>
        public int Number
        {
            get { return Convert.ToInt32(textBoxNumber.Text); }
            set { textBoxNumber.Text = value.ToString(); }
        }

        /// <summary>
        /// Конструктор
        /// </summary>
        /// <param name="stopLogic"></param>
        public FormRouteStop(IStopLogic stopLogic)
        {
            InitializeComponent();

            // Загрузка списка остановок для ComboBoxStop
            _list = stopLogic.ReadList(null);
            if (_list != null)
            {
                comboBoxStop.DisplayMember = "Name";
                comboBoxStop.ValueMember = "Id";
                comboBoxStop.DataSource = _list;
                comboBoxStop.SelectedItem = null;
            }
        }

        /// <summary>
        /// Кнопка "Сохранить"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonSave_Click(object sender, EventArgs e)
        {
            if (comboBoxStop.SelectedValue == null)
            {
                MessageBox.Show("Выберите остановку", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (string.IsNullOrEmpty(textBoxNumber.Text))
            {
                MessageBox.Show("Заполните номер остановки", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            DialogResult = DialogResult.OK;
            Close();
        }

        /// <summary>
        /// Кнопка "Отмена"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonCancel_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
        }
    }
}