WPF定时刷新UI界面

代码：

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 通知公告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 绑定通知公告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}
}

View Code

说明：在 System.Timers.Timer 的事件中使用 BackgroundWorker 是无效的，即如下代码不能正常刷新界面：

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 通知公告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 绑定通知公告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}
}