MainPage

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Newtonsoft.Json;
using Microsoft.Phone.Reactive;

namespace Cocktails
{
    public partial class MainPage : PhoneApplicationPage
    {
        public string CocktailId { get; set; }


        // Constructor
        public MainPage()
        {
            InitializeComponent();
            var w = new WebClient();
            Observable
              .FromEvent<DownloadStringCompletedEventArgs>(w, "DownloadStringCompleted")
              .Subscribe(r =>
              {
                  var deserialized =
                    JsonConvert.DeserializeObject<List<Cocktails>>(r.EventArgs.Result);
                  CocktailList.ItemsSource = deserialized;
              });
            w.DownloadStringAsync(
              new Uri("http://192.168.1.103/getdata.php"));
        }

        private void CocktailList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            //MessageBox.Show("Cocktail mit ID " + CocktailList.SelectedIndex);

            // If selected index is -1 (no selection) do nothing
            if (CocktailList.SelectedIndex == -1)
                return;

            // Navigate to the new page
            NavigationService.Navigate(new Uri("/DetailsPage.xaml?selectedItem=" + CocktailList.SelectedIndex, UriKind.Relative));

            // Reset selected index to -1 (no selection)
            CocktailList.SelectedIndex = -1;

        }



    }


    public class Cocktails
    {
        public string id { get; set; }
        public string name { get; set; }
        public string image { get; set; }
        public string description { get; set; }
    }

}