private void button1_Click(object sender, EventArgs e)
{
DataSetter SetData = new DataSetter();
int counter = 0;
foreach (ListViewItem item in listView1.SelectedItems)
{
counter++;
SetData.RemoveEventReservations(int.Parse(item.SubItems[3].Text));
}
MessageBox.Show($"Removed {counter} ticket(s).");
this.Hide();
Order.RemoveData();
}
