private void buttonAddBox_Click(object sender, EventArgs e)
{
var box = new Box();
box.Number = Int32.Parse(textBoxNumber.Text);
Enum.TryParse(comboBoxStatus.Text, out StatusEnum status);
box.Status = status;
box.UserId = Int32.Parse(textBoxUserId.Text);
_boxService.Add(box);
RefreshDataGridView();
}