MainPage.xaml

<Page x:Class="Parking_Tag_Picker_WRT.MainPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:local="using:Parking_Tag_Picker_WRT"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
      mc:Ignorable="d">


    <Grid x:Name="LayoutRoot" Background="#FF236A93">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>



        <StackPanel x:Name="TitlePanel"
                    Grid.Row="0"
                    Margin="12,17,0,28">
            <TextBlock Style="{StaticResource SubheaderTextBlockStyle}" Text="Parking Tag Picker" />
            <TextBlock Margin="9,-7,0,0"
                       Style="{StaticResource HeaderTextBlockStyle}"
                       Text="Council Zones" />
        </StackPanel>

        <Grid x:Name="ContentPanel"
              Grid.Row="1"
              Margin="12,0,12,0">

            <ListView x:Name="ZonesListView"
                      Margin="0,0,-12,0"
                      ItemsSource="{Binding CouncilNameItems}"
                      SelectedItem="{Binding SelectedCouncilName,
                                             Mode=TwoWay}">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Margin="0,0,0,17">
                            <TextBlock Style="{ThemeResource ListViewItemTextBlockStyle}"
                                       Text="{Binding CouncilAcronym}"
                                       TextWrapping="Wrap" />
                            <TextBlock Margin="12,-6,12,0"
                                       Style="{ThemeResource ListViewItemSubheaderTextBlockStyle}"
                                       Text="{Binding CouncilFullName}"
                                       TextWrapping="Wrap" />
                        </StackPanel>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>

        </Grid>

        <!--
            Uncomment to see an alignment grid to help ensure your controls are
            aligned on common boundaries.  The image has a top margin of -32px to
            account for the System Tray. Set this to 0 (or remove the margin altogether)
            if the System Tray is hidden.
            
            Before shipping remove this XAML and the image itself.
        -->
        <!--<Image Source="/Assets/AlignmentGrid.png" VerticalAlignment="Top" Height="800" Width="480" Margin="0,-32,0,0" Grid.Row="0" Grid.RowSpan="2" IsHitTestVisible="False" />-->
    </Grid>
</Page>

MainPage.xaml.cs

using Parking_Tag_Picker_WRT.Interfaces;
using Parking_Tag_Picker_WRT.ViewModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=391641

namespace Parking_Tag_Picker_WRT
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page, INavigationCallback
    {
        MainViewModel vm;

        public MainPage()
        {
            //init data context
            this.NavigationCacheMode = NavigationCacheMode.Required;
            this.InitializeComponent();
            vm = new MainViewModel(this);
            this.DataContext = vm;
            vm.LoadCouncilNamesData();
        }

        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.
        /// This parameter is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            // TODO: Prepare page for display here.

            // TODO: If your application contains multiple pages, ensure that you are
            // handling the hardware Back button by registering for the
            // Windows.Phone.UI.Input.HardwareButtons.BackPressed event.
            // If you are using the NavigationHelper provided by some templates,
            // this event is handled for you.
        }

        void INavigationCallback.NavigateTo(string ItemID)
        {
            Frame.Navigate(typeof(RequestTagPage), ItemID);
        }
    }
}

MainViewModel.cs

using Parking_Tag_Picker_WRT.Interfaces;
using Parking_Tag_Picker_WRT.Models;
using System.Collections.ObjectModel;
using System.ComponentModel;

namespace Parking_Tag_Picker_WRT.ViewModel
{
    /// <summary>
    /// This class contains properties that the main View can data bind to.
    /// <para>
    /// Use the <strong>mvvminpc</strong> snippet to add bindable properties to this ViewModel.
    /// </para>
    /// <para>
    /// You can also use Blend to data bind with the tool's support.
    /// </para>
    /// <para>
    /// See http://www.galasoft.ch/mvvm
    /// </para>
    /// </summary>
    public class MainViewModel : INotifyPropertyChanged
    {

        private INavigationCallback _navCallBack { get; set; }

        /// <summary>
        /// Initializes a new instance of the MainViewModel class.
        /// </summary>
        public MainViewModel(INavigationCallback navCallBack)
        {
            this._navCallBack = navCallBack;
            this.CouncilNameItems = new ObservableCollection<CouncilName>();
        }


        

        /// <summary>
        /// Creates and adds council name data.
        /// </summary>
        public void LoadCouncilNamesData()
        {
            //Load Council Names
            this.CouncilNameItems.Add(new CouncilName() { ID = "0", CouncilAcronym = "DCC", CouncilFullName = "Dublin City Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "1", CouncilAcronym = "DLR", CouncilFullName = "Dún Laoghaire-Rathdown County Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "2", CouncilAcronym = "FCC", CouncilFullName = "Fingal County Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "3", CouncilAcronym = "SDC", CouncilFullName = "South Dublin County Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "4", CouncilAcronym = "ATC", CouncilFullName = "Arklow Town Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "5", CouncilAcronym = "DLH", CouncilFullName = "Dún Laoghaire Harbour Company" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "6", CouncilAcronym = "WTC", CouncilFullName = "Wicklow Town Council" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "7", CouncilAcronym = "TS", CouncilFullName = "Tallaght Stadium" });
            this.CouncilNameItems.Add(new CouncilName() { ID = "8", CouncilAcronym = "GS", CouncilFullName = "Greystones" });
           
            this.IsDataLoaded = true;
        }



        public ObservableCollection<CouncilName> CouncilNameItems { get;  set; }

        public bool IsDataLoaded { get; private set; }


        private CouncilName _selectedCouncilName;
        public CouncilName SelectedCouncilName
        {
            get
            {
                return _selectedCouncilName;
            }
            set
            {
                if (_selectedCouncilName != value)
                {
                    _selectedCouncilName = value;
                    RaisePropertyChanged("SelectedCouncilName");
                    _navCallBack.NavigateTo(_selectedCouncilName.ID);            
                }
            }

        }
        
        
  
        public event PropertyChangedEventHandler PropertyChanged;

        public void RaisePropertyChanged(string prop)
        {
            if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(prop)); }
        }
    }
    
}

RequestTagPage.xaml.cs

using Parking_Tag_Picker_WRT.Common;
using Parking_Tag_Picker_WRT.Helpers;
using Parking_Tag_Picker_WRT.ViewModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.Graphics.Display;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkID=390556

namespace Parking_Tag_Picker_WRT
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class RequestTagPage : Page
    {
        private NavigationHelper navigationHelper;
        private ObservableDictionary defaultViewModel = new ObservableDictionary();

        private TagRequestViewModel _vm;
        private DatabaseHelper _dbHelper;

        private bool _isNewPageInstance = false;

        public RequestTagPage()
        {
            this.InitializeComponent();

            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
            this.navigationHelper.SaveState += this.NavigationHelper_SaveState;

            //init data context
            this.NavigationCacheMode = NavigationCacheMode.Required;
            _dbHelper = new DatabaseHelper();
            _vm = new TagRequestViewModel(_dbHelper);
            this.DataContext = _vm;

            _isNewPageInstance = true;  
        }

        /// <summary>
        /// Gets the <see cref="NavigationHelper"/> associated with this <see cref="Page"/>.
        /// </summary>
        public NavigationHelper NavigationHelper
        {
            get { return this.navigationHelper; }
        }

        /// <summary>
        /// Gets the view model for this <see cref="Page"/>.
        /// This can be changed to a strongly typed view model.
        /// </summary>
        public ObservableDictionary DefaultViewModel
        {
            get { return this.defaultViewModel; }
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session.  The state will be null the first time a page is visited.</param>
        private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)
        {
            // If _isNewPageInstance is true, the page constuctor has been called, so
            // state may need to be restored.
            if (_isNewPageInstance)
            {
                if (_vm == null)
                {
                    if (e.PageState.Count > 0)
                    {
                        _vm = (TagRequestViewModel)e.PageState["ViewModel"];
                    }
                    else
                    {
                        _vm = new TagRequestViewModel(_dbHelper);
                    }
                }
                DataContext = _vm;
            }
            // Set _isNewPageInstance to false. If the user navigates back to this page
            // and it has remained in memory, this value will continue to be false.
            _isNewPageInstance = false;
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="sender">The source of the event; typically <see cref="NavigationHelper"/></param>
        /// <param name="e">Event data that provides an empty dictionary to be populated with
        /// serializable state.</param>
        private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)
        {         
            // Save the ViewModel variable in the page's State dictionary.
            e.PageState["ViewModel"] = _vm;     
        }

        #region NavigationHelper registration

        /// <summary>
        /// The methods provided in this section are simply used to allow
        /// NavigationHelper to respond to the page's navigation methods.
        /// <para>
        /// Page specific logic should be placed in event handlers for the  
        /// <see cref="NavigationHelper.LoadState"/>
        /// and <see cref="NavigationHelper.SaveState"/>.
        /// The navigation parameter is available in the LoadState method 
        /// in addition to page state preserved during an earlier session.
        /// </para>
        /// </summary>
        /// <param name="e">Provides data for navigation methods and event
        /// handlers that cannot cancel the navigation request.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            this.navigationHelper.OnNavigatedTo(e);
            ((TagRequestViewModel)this.DataContext).SelectedCouncilId = (string)e.Parameter;
            _vm.InitZoneInfoAsync();
        }

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            this.navigationHelper.OnNavigatedFrom(e);

           
        }

        #endregion

        private void ZoneInfoAppBarBtn_Click(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(ZoneInfoPage), _vm.SelectedZone);
        }
    }
}