private void buttonEdit_Click(object sender, EventArgs e)
        {
            Employee empl = new Employee();

            int selectedIndex = dataGridView1.CurrentCell.RowIndex;

            empl.Id         = (int)dataGridView1.Rows[selectedIndex].Cells[0].Value;
            empl.Surname    = (string)dataGridView1.Rows[selectedIndex].Cells[1].Value;
            empl.Name       = (string)dataGridView1.Rows[selectedIndex].Cells[2].Value;
            empl.Patronymic = (string)dataGridView1.Rows[selectedIndex].Cells[3].Value;
            empl.Login      = (string)dataGridView1.Rows[selectedIndex].Cells[4].Value;
            empl.Password   = (string)dataGridView1.Rows[selectedIndex].Cells[5].Value;
            empl.PositionId = (int)dataGridView1.Rows[selectedIndex].Cells[7].Value;

            EmployeeEditForm f = new EmployeeEditForm(getInstance(), empl);

            f.ShowDialog();
        }
        private void buttonCreate_Click(object sender, EventArgs e)
        {
            EmployeeEditForm f = new EmployeeEditForm(getInstance());

            f.ShowDialog();
        }