Views/AnimationView.xaml.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
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.Animation;
using System.Windows.Media.Effects;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using MahApps.Metro.IconPacks;

namespace MahAppsMetro.Demo.Views
{
    /// <summary>
    /// AnimationView.xaml 的互動邏輯
    /// </summary>
    public partial class AnimationView : UserControl
    {
        public AnimationView()
        {
            InitializeComponent();
        }

        #region Animation1
        bool IsStart1 { get; set; }
        private void btnStop1_Click(object sender, RoutedEventArgs e)
        {
            //(this.TryFindResource("story2") as Storyboard).Stop();
            canvas1.Children.Clear();
            IsStart1 = false;
        }
        
        private void btnStart1_Click(object sender, RoutedEventArgs e)
        {
            if (IsStart1) return;
            IsStart1 = true;
            StartSnowing(canvas1);
        }

        void StartSnowing(Canvas panel)
        {
            Random random = new Random();
            Task.Factory.StartNew(new Action(() =>
            {
                for (int j = 0; j < 10; j++)
                {
                    Thread.Sleep(j * 100);
                    Dispatcher.Invoke(new Action(() =>
                    {
                        int snowCount = random.Next(0, 20);
                        for (int i = 0; i < snowCount; i++)
                        {