PIBD-23_Fomichev_V.S._FamilyBudget/ProjectFamilyBudget/Forms/FormPeopleIncome.cs

using ProjectFamilyBudget.Entities;
using ProjectFamilyBudget.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;

namespace ProjectFamilyBudget.Forms
{
    public partial class FormPeopleIncome : Form
    {
        private readonly IPeopleIncome _peopleIncome;
        public FormPeopleIncome(IPeopleIncome peopleIncome, IPeople people, IIncome income)
        {
            InitializeComponent();
            _peopleIncome = peopleIncome ??
                throw new ArgumentNullException(nameof(peopleIncome));
            comboBoxPeople.DataSource = people.ReadPeople();
            comboBoxPeople.DisplayMember = "Name";
            comboBoxPeople.ValueMember = "Id";

            ColumnIncome.DataSource = income.ReadIncome();
            ColumnIncome.DisplayMember = "Name";
            ColumnIncome.ValueMember = "Id";
        }

        private void buttonSave_Click(object sender, EventArgs e)
        {
            try
            {
                if ((dataGridView.RowCount < 1)
                ||
                (comboBoxPeople.SelectedIndex < 0))
                {
                    throw new Exception("Имеются незаполненные поля");
                }
                _peopleIncome.CreatePeopleIncome(PeopleIncome.CreateOperation(0, (int)comboBoxPeople.SelectedValue!, dateTimePicker.Value,
                    CreateListPeopleIncomeFromDataGrid()));
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при сохранении",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void buttonCansel_Click(object sender, EventArgs e) => Close();
        private List<IncomePeopleIncome> CreateListPeopleIncomeFromDataGrid()
        {
            var list = new List<IncomePeopleIncome>();
            foreach (DataGridViewRow row in dataGridView.Rows)
            {
                if (row.Cells["ColumnIncome"].Value == null || row.Cells["ColumnSum"].Value == null)
                {
                    continue;
                }
                list.Add(IncomePeopleIncome.CreateElement(0, Convert.ToInt32(row.Cells["ColumnIncome"].Value)
                    , Convert.ToInt32(row.Cells["ColumnSum"].Value)));
            }
            return list;

        }
    }
}