private void Delete_Click(object sender, RoutedEventArgs e)
{
string id = IDDelete.Text;
List <string> dt = DB.GetDataOneAttribute($"select id_book from OrdersBooks where number={id}", "id_book");
List <string> book = DB.GetDataOneAttribute($"select price from Books where id = {dt[0]}", "price");
if (DB.Command($"delete from OrdersBooks where number = {id}"))
{
SetAllInOrder();
DB.Command($"update Orders set result-={ChangeComa(book[0])} where id = {id_order}");
}
}