mdk-01.01-school/school/FolderPages/pageServiceNearRecord.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;

namespace school
{
    /// <summary>
    /// Логика взаимодействия для pageServiceNearRecord.xaml
    /// </summary>
    public partial class pageServiceNearRecord : Page
    {
        DispatcherTimer timer = new DispatcherTimer();
        public pageServiceNearRecord()
        {
            InitializeComponent();
            timer.Interval = new TimeSpan(0,0,30); //таймер на 30 секунд
            timer.Tick += update;
            init();
            timer.Start();
        }
        private void update(object sender, EventArgs e)
        {
            init();
        }
        private void init()
        {
            DateTime now = DateTime.Now;
            DateTime tomorrow = DateTime.Today.AddDays(2); //конец завтрашнего дня
            List<ClientService> list = baseConnect.thisBase.ClientService.Where(tb => tb.StartTime > now && tb.StartTime < tomorrow).OrderBy(tb=>tb.StartTime).ToList();
            if(list.Count > 0)
            {
                DGRecords.ItemsSource = list;
            }
            else
            {
                MessageBox.Show("Соответствующие записи не были найдены");
            }
        }
        private void BtnBackClick(object sender, RoutedEventArgs e)
        {
            dataFrame.mainFrame.Navigate(new pageServicesList());
        }
    }
}