Bind listbox to ObservableCollection - wpf

Question

I cannot find an answer I can work with for this problem.
I have an ObservableCollection
this is myClass:
public class myClass
{
public string name;
public int[] dimensions = new int[2];
}
This is the code that sets ObservableCollection:
public class roomBuilder
{
private ObservableCollection<myClass> rooms;
public roomBuilder() //constructor
{
string roomName;
int[] dimensions = new int[2];
myClass newRoom = new myClass();
rooms = new ObservableCollection<room>();
roomName = "Hall";
dimensions[0] = 10;
dimensions[1] = 12;
newRoom.name = roomName;
newRoom.dimensions = dimensions;
rooms.Add(newRoom);
roomListBox.DataContext = rooms;
}
the XAML for this is:
<ListBox Canvas.Left="-1" Canvas.Top="47" Height="419" Name="roomListBox" Width="481" BorderThickness="1" BorderBrush="GhostWhite" ItemsSource="{Binding}" DataContext="{Binding}">
<ListBox.ItemTemplate >
<DataTemplate >
<StackPanel Orientation="Vertical" Margin="1" Name="verstack" >
<StackPanel Orientation="Horizontal" Margin="1" KeyDown="StackPanel_KeyDown" >
<TextBox Text="{Binding Path=name}" IsReadOnly="False" FontFamily="Courier New" FontSize="22" Height="65" VerticalAlignment="Top" TextAlignment="Center"/>
<TextBox Name="xDimension" Text="{Binding Mode=TwoWay, Path=dimensions[0] }" Width="70" Height="65" VerticalAlignment="Top" IsReadOnly="False" FontFamily="Courier New" Margin="2,0,1,0" FontSize="22" MaxLength="3" InputScope="TelephoneNumber" TextAlignment="Center" />
<TextBlock Name="separator" Text=":" FontSize="32" FontWeight="ExtraBold" Margin="1,4,1,0" />
<TextBox Name="yDimension" Text="{Binding Mode=TwoWay, Path=dimensions[1] }" Width="70" Height="65" VerticalAlignment="Top" IsReadOnly="False" FontFamily="Courier New" Margin="1,0,2,0" FontSize="22" MaxLength="3" InputScope="TelephoneNumber" TextAlignment="Center"/>
I havent closed the Xaml off here , there's a load more underneath it, when I run this nothing is displayed and I just don't know what the problem is, I've been hammering away at it for 2 days, please someone help

Answer 1

Rooms needs to be a public property that you bind to.
public ObservableCollection<myClass> rooms
{
get { return ........