WPF C# 轮播图

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Threading;

namespace KthSelfDataServiceClient
{
    public class ActiveImageAutoScroll : UserControl
    {
        private static List ScrollImages;
        private Image imgAdvertPic = new Image（）
        {
            Stretch = Stretch.Uniform
        };
        public Grid MainGrid = new Grid（）
        {
            HorizontalAlignment = HorizontalAlignment.Stretch
            VerticalAlignment = VerticalAlignment.Stretch
        };
        public WrapPanel btnPanel = new WrapPanel（）;
        DoubleAnimation doubleAnimation = new DoubleAnimation（）; //创建双精度动画对象

        public static DependencyProperty advertPicList = DependencyProperty.Register（“advertPicList“
            typeof（List） typeof（ActiveImageAutoScroll）
            new Propertymetadata（new PropertyChangedCallback（ScrollImagesCreateActive）））;

        public static DependencyProperty advertPicStayTime = DependencyProperty.Register（“advertPicStayTime“
            typeof（List） typeof（ActiveImageAutoScroll）
            new Propertymetadata（new PropertyChangedCallback（loadAdvertStayTime）））;

        public static DependencyProperty isShowPageNumBtn = DependencyProperty.Register（“isShowPageNumBtn“
            typeof（bool） typeof（ActiveImageAutoScroll）
            new Propertymetadata（new PropertyChangedCallback（showPageNum）））;

        public List AdvertPicStayTime
        {
            get { return （List）GetValue（advertPicStayTime）; }
            set { SetValue（advertPicStayTime value）; }
        }

        public List AdvertPicList
        {
            get { return （List）GetValue（advertPicList）; }
            set { SetValue（advertPicList value）; }
        }

        public bool IsShowPageNumBtn
        {
            get { return （bool）GetValue（isShowPageNumBtn）; }
            set {
                SetValue（isShowPageNumBtn value）;
                if （!IsShowPageNumBtn）
                {
                    btnPanel.Visibility = Visibility.Collapsed;
                }
                else
                {
                    btnPanel.Visibility = Visibility.Visible;
                }
            }
        }
        private static void ScrollImagesCreateActive（Dependencyobject sender DependencyPropertyChangedEventArgs e）
        {
            ActiveImageAutoScroll advertPicControl = （ActiveImageAutoScroll）sender;
            if （e.Property == advertPicList）
            {
                advertPicControl.AdvertPicList = （List）e.NewValue;
                ScrollImages = advertPicControl.AdvertPicList;
            }
        }
        private static void loadAdvertStayTim