Clock.xaml.cs :  » Windows-Presentation-Foundation » Snoop » WpfClockNS » C# / CSharp Open Source

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C# / CSharp Open Source » Windows Presentation Foundation » Snoop 
Snoop » WpfClockNS » Clock.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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.Threading;
using System.Windows.Threading;
using System.Windows.Media.Animation;

namespace WpfClockNS{
    public partial class Clock : ContentControl
    {
        private DispatcherTimer _dayTimer;
        public Clock()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(Clock_Loaded);

        }

        void Clock_Loaded(object sender, RoutedEventArgs e) {
            // set the datacontext to be today's date
            DateTime now = DateTime.Now;
            DataContext = now.Day.ToString();

            // then set up a timer to fire at the start of tomorrow, so that we can update
            // the datacontext
            _dayTimer = new DispatcherTimer();
            _dayTimer.Interval = new TimeSpan(1, 0, 0, 0) - now.TimeOfDay;
            _dayTimer.Tick += new EventHandler(OnDayChange);
            _dayTimer.Start();

            // finally, seek the timeline, which assumes a beginning at midnight, to the appropriate
            // offset
            Storyboard sb = (Storyboard)PodClock.FindResource("sb");
            sb.Begin(PodClock, HandoffBehavior.SnapshotAndReplace, true);
            sb.Seek(PodClock, now.TimeOfDay, TimeSeekOrigin.BeginTime);
        }

    private void OnDayChange(object sender, EventArgs e)
    {
            // date has changed, update the datacontext to reflect today's date
      DateTime now = DateTime.Now;
      DataContext = now.Day.ToString();
      _dayTimer.Interval = new TimeSpan(1, 0, 0, 0);
    }
  }
}
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