C#

using System;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.Collections.Generic;

namespace NSSWebServiceApplication
{
    [ServiceContract(Namespace = "")]
    [SilverlightFaultBehavior]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class NSSService
    {
        [OperationContract]
        public List<Server_Log> GetAllServer_Logs()
        {
            // Add your operation implementation here
            using (NSSEntities entities = new NSSEntities())
            {
                var allServer_Logs = from x in entities.Server_Log
                                     select x;
                return allServer_Logs.ToList();
            }
        }

        // Add more operations here and mark them with [OperationContract]
    }
}

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 NSSPhoneApp.NSSServiceReference;
using System.ServiceModel;

namespace NSSPhoneApp
{
    public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(MainPage_Loaded);
        }

        void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            NSSServiceClient client = new NSSServiceClient();
            client.GetAllServer_LogsCompleted +=
                new EventHandler<GetAllServer_LogsCompletedEventArgs>(client_GetAllServer_LogsCompleted);
            client.GetAllServer_LogsAsync();
        }

        void client_GetAllServer_LogsCompleted(object sender, GetAllServer_LogsCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                lst.ItemsSource = e.Result;
            }
        }
    }
}