SUBD/CarRent/FormCreateCar.cs

using CarRentBusinessLogic.BusinessLogics;
using CarRentContracts.BindingModels;
using CarRentContracts.BusinessLogicContracts;
using CarRentContracts.SearchModels;
using ClientRentBusinessLogic.BusinessLogics;
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 CarRent
{
	public partial class FormCreateCar : Form
	{
		private readonly ICarLogic _carLogic;
		private readonly IBranchLogic _branchLogic;

		private int? _id;
		public int Id { set { _id = value; } }
		public FormCreateCar(ICarLogic carLogic, 
								IBranchLogic branchLogic)
		{
			InitializeComponent();

			_carLogic = carLogic;
			_branchLogic = branchLogic;
		}
		private void LoadData()
		{
			try
			{
				var list = _branchLogic.ReadList(null);

				if (list != null)
				{
					comboBoxBranch.DisplayMember = "Name";
					comboBoxBranch.ValueMember = "Id";
					comboBoxBranch.DataSource = list;
					comboBoxBranch.SelectedItem = null;
				}
			}
			catch (Exception ex)
			{ }
		}
		private void buttonAdd_Click(object sender, EventArgs e)
		{
			if (string.IsNullOrEmpty(textBoxBrand.Text))
			{
				MessageBox.Show("Введите производителя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			if (string.IsNullOrEmpty(textBoxColor.Text))
			{
				MessageBox.Show("Введите цвет автомобиля", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			if (string.IsNullOrEmpty(textBoxLicensePlate.Text))
			{
				MessageBox.Show("Введите номер автомобиля", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			if (string.IsNullOrEmpty(textBoxModel.Text))
			{
				MessageBox.Show("Введите модель автомобиля", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			if (string.IsNullOrEmpty(textBoxRentalCost.Text))
			{
				MessageBox.Show("Введите стоимость часовой аренды автомобиля", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			if (string.IsNullOrEmpty(comboBoxBranch.Text))
			{
				MessageBox.Show("Выберите филиал, в котором находится автомобиль", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
				return;
			}
			try
			{
				var model = new CarBindingModel
				{
					Id = _id ?? 0,
					Brand = textBoxBrand.Text,
					Model = textBoxModel.Text,
					YearOfManuf = DateTime.SpecifyKind(dateTimePicker.Value, DateTimeKind.Utc),
					Color = textBoxColor.Text,
					LicensePlate = textBoxLicensePlate.Text,
					RentalCostPerHour = Convert.ToDouble(textBoxRentalCost.Text),
					BranchId = Convert.ToInt32(comboBoxBranch.SelectedValue),
				};
				var operationResult = _id.HasValue ? _carLogic.Update(model) : _carLogic.Create(model);

				if (!operationResult)
				{
					throw new Exception("Ошибка при сохранеии.");
				}

				MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
				DialogResult = DialogResult.OK;

				Close();
			}
			catch (Exception ex)
			{
				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
			}
		}

		private void buttonCancel_Click(object sender, EventArgs e)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}

		private void FormCreateCar_Load(object sender, EventArgs e)
		{
			LoadData();
			if (_id.HasValue)
			{
				try
				{
					var view = _carLogic.ReadElement(new CarSearchModel { Id = _id.Value });

					if (view != null)
					{
						textBoxBrand.Text = view.Brand;
						textBoxColor.Text = view.Color;
						textBoxLicensePlate.Text = view.LicensePlate;
						textBoxModel.Text = view.Model;
						textBoxRentalCost.Text = view.RentalCostPerHour.ToString();
						dateTimePicker.Value = view.YearOfManuf;
						comboBoxBranch.SelectedIndex = view.BranchId;
					}
				}
				catch (Exception ex)
				{
					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
				}
			}
		}
	}
}