WPF Realizes the Function of Refreshing UI Interface Timely

In this paper, we share the specific codes of WPF refresh UI interface regularly for your reference. The specific contents are as follows

Code:

using NHibernate.Criterion;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading;
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 Visifire.Charts;

namespace SunCreate.CombatPlatform.Client
{
 public partial class MainPage : UserControl
 {
  private System.Timers.Timer timerNotice = null;

  public MainPage()
  {
   InitializeComponent();
  }

  private void MainPage_Loaded(object sender, RoutedEventArgs e)
  {
   #region  Notice announcement 
   if (timerNotice == null)
   {
    BindNotice();

    timerNotice = new System.Timers.Timer();
    timerNotice.Elapsed += new System.Timers.ElapsedEventHandler((o, eea) =>
    {
     BindNotice();
    });
    timerNotice.Interval = 60 * 1000;
    timerNotice.Start();
   }
   #endregion
  }

  private void MainPage_SizeChanged(object sender, SizeChangedEventArgs e)
  {

  }

  #region  Binding notification announcement 
  private void BindNotice()
  {
   System.Threading.Tasks.Task.Factory.StartNew(() =>
   {
    try
    {
     int total = 0;
     TES_NOTICE info = new TES_NOTICE();
     IList<TES_NOTICE> list = new List<TES_NOTICE>();

     list = HI.Get<INoticeService>().GetListPage(null, DateTime.MinValue, DateTime.MinValue, 1, 50, ref total);

     Dispatcher.Invoke(new Action(() =>
     {
      noticeListView.ItemsSource = list;
     }));
    }
    catch
    {

    }
   });
  }
  #endregion

 }
}

Note: Using BackgroundWorker in System. Timers. Timer is invalid, that is, the following code cannot refresh the interface normally:

using NHibernate.Criterion;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading;
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 Visifire.Charts;

namespace SunCreate.CombatPlatform.Client
{
 public partial class MainPage : UserControl
 {
  private System.Timers.Timer timerNotice = null;

  public MainPage()
  {
   InitializeComponent();
  }

  private void MainPage_Loaded(object sender, RoutedEventArgs e)
  {
   #region  Notice announcement 
   if (timerNotice == null)
   {
    BindNotice();

    timerNotice = new System.Timers.Timer();
    timerNotice.Elapsed += new System.Timers.ElapsedEventHandler((o, eea) =>
    {
     BindNotice();
    });
    timerNotice.Interval = 60 * 1000;
    timerNotice.Start();
   }
   #endregion
  }

  private void MainPage_SizeChanged(object sender, SizeChangedEventArgs e)
  {

  }

  #region  Binding notification announcement 
  private void BindNotice()
  {
   PT_USER_INFO user = new PT_USER_INFO();
   IList<TES_COMBAT_TASK> taskList = new List<TES_COMBAT_TASK>();

   BackgroundWorker worker = new BackgroundWorker();
   worker.DoWork += (s, e) =>
   {
    user = HI.Get<Cache.ICacheService>().UserCache.GetCurrentUserInfo();
    taskList = HI.Get<ITaskService>().GetCombatTaskByUserIDUnfinished(user.ID.ToString());

   };
   worker.RunWorkerCompleted += (s, e) =>
   {
    try
    {
     taskListView.ItemsSource = taskList;
    }
    catch { }
   };
   worker.RunWorkerAsync();
  }
  #endregion

 }
}

You can also use DispatcherTimer to refresh the interface, but the time-consuming operation cannot be executed in the event of DispatcherTimer, otherwise the interface will get stuck, so the time-consuming timing operation, such as querying the database, needs to use another System. Timers. Timer, which is relatively troublesome.