public Transaction(PlayerCollection players, StreetCollection streets)
 {
     InitializeComponent();
     this.players             = players;
     receiver.ItemsSource     = players;
     payer.ItemsSource        = players;
     this.streets.ItemsSource = streets;
 }
 public AddStreet(StreetCollection streets)
 {
     InitializeComponent();
     this.streets = streets;
 }