PIBD14-Boyko-M.S.-GSM-Autotrans/ProjectGSM/Forms/FormAdvocates.cs

using ProjectGSM.Repositories;
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;
using Unity;

namespace ProjectGSM.Forms
{
    public partial class FormAdvocates : Form
    {
        private readonly IUnityContainer _container;

        private readonly IAdvocateRepository _advocateRepository;
        public FormAdvocates(IUnityContainer container, IAdvocateRepository advocateRepository)
        {
            InitializeComponent();
            _container = container ??
            throw new ArgumentNullException(nameof(container));
            _advocateRepository = advocateRepository ??
            throw new
            ArgumentNullException(nameof(advocateRepository));

        }

        private void deleteButton_Click(object sender, EventArgs e)
        {
            if (!TryGetIdentifierFromSelectedRow(out var findId))
            {
                return;
            }
            if (MessageBox.Show("Удалить запись?", "Удаление",
            MessageBoxButtons.YesNo) != DialogResult.Yes)
            {
                return;
            }
            try
            {
                _advocateRepository.DeleteAdvocate(findId);
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при удалении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void editButton_Click(object sender, EventArgs e)
        {
            if (!TryGetIdentifierFromSelectedRow(out var findId))
            {
                return;
            }
            try
            {
            var form = _container.Resolve<FormAdvocate>();
                form.Id = findId;
                form.ShowDialog();
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при изменении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void addButton_Click(object sender, EventArgs e)
        {
            try
            {
                _container.Resolve<FormAdvocate>().ShowDialog();
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при добавлении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void FormClients_Load(object sender, EventArgs e)
        {
            try
            {
                LoadList();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при загрузке",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

        private void LoadList() => dataGridViewAdvocats.DataSource =
_advocateRepository.ReadAdvocates();

        private bool TryGetIdentifierFromSelectedRow(out int id)
        {
            id = 0;
            if (dataGridViewAdvocats.SelectedRows.Count < 1)
            {
                MessageBox.Show("Нет выбранной записи", "Ошибка",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }
            id =
            Convert.ToInt32(dataGridViewAdvocats.SelectedRows[0].Cells["Id"].Value);
            return true;
        }

    }
}