private void ClearBtn_Click(object sender, EventArgs e)
{
WagonTextBox.Clear();
LBAnimals.Items.Clear();
animals.Clear();
train.ClearWagonList();
}
private void BTNSort_Click(object sender, EventArgs e)
{
train.ClearWagonList();
WagonTextBox.Clear();
List <Wagon> wagons = new List <Wagon>();
wagons = Sorter.AnimalsToWagons(animals);
train.AddWagons(wagons);
var listviewitem = new ListViewItem(train.ToString());
WagonTextBox.Text = train.ToString();
animals.Clear();
LBAnimals.Items.Clear();
}