MainPage.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using mahasiswa.ViewModels;
 
namespace mahasiswa
{
    public partial class MainPage : PhoneApplicationPage
    {
        public MainPage()
        {
            InitializeComponent();
            LongListSelector_MainData_DataBind();
        }
 
        public async Task LongListSelector_MainData_DataBind()
        {
            try
            {
                HttpClient client = new HttpClient();
                client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                HttpResponseMessage response = await client.GetAsync("http://128.199.145.197:3000/api/BERITA");
                response.EnsureSuccessStatusCode();
 
                if (response.IsSuccessStatusCode)
                {
                    var mhs = response.Content.ReadAsAsync<IEnumerable<MahasiswaModel>>().Result.ToList();
                    LongListSelector_MainData.ItemsSource = mhs;
                }
                else
                {
                    MessageBox.Show("Gagal");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
 
        private void LongListSelector_MainData_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (LongListSelector_MainData.SelectedItem == null)
            {
                return;
            }
 
            PhoneApplicationService.Current.State["Berita"] = LongListSelector_MainData.SelectedItem;
            NavigationService.Navigate(new Uri("/View/Detail.xaml", UriKind.Relative));
 
            LongListSelector_MainData.SelectedItem = null;
        }
    }
}