最近整理电脑东西,虽然WP7已成过去式,记录下吧，代码是该别人的,增加委托传值,如得到获取数据的百分比等

正则抓取下厨房数据

下厨房正则
     
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        [^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*> 图片
        
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           .+?
           
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              第一步 
            
(?
             .+?
 做法
            
             (?
             
             
              
               .+?)">(?
               
               
                
                 .+?)"\s+target="_blank">
                 
                  
                   .+?)"\s+alt="(?
                   
                    .+?)">.+?
                    
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                      .+?)
                     
 菜系详细
                    
特色菜：
.+?([
                    .+?].+?) 特色菜
                    
                     电话：
                    
.+?
                    
                     (?
                     
                      .+?)
                     
                    
做法
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                      .+?)
                     .+?
                    (?
                     
                      
                       .+?)"
                       (?
                        
                         .+?)
                        (?
                       
                        No Image主料itemprop="name"\s+title=.+?的做法">(?
                       
                       
                        
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分页

public delegate void LazyListBoxHelperDelegateHandler(object obj);    public class LazyListBoxHelper    {        static public int _pageIndex=0;        static public bool _isBusy=true;        //用于保存ListBox的ScrollViewer对象的引用        static private ScrollViewer _scrollViewer = null;        //用于判断是否已经捕捉ScrollViewer        static private bool _isHookedScrollEvents = false;        static public event LazyListBoxHelperDelegateHandler EventLazyListBoxHelperDelegateHandler;        public static void InitLazyBox(Control LazyBox)        {            List
     
       scrollBarList = GetVisualChildCollection
      
       (LazyBox);            foreach (ScrollBar scrollBar in scrollBarList)            {                if (scrollBar.Orientation == System.Windows.Controls.Orientation.Horizontal)                {                }                else                {                    scrollBar.ValueChanged += verticalScrollBar_ValueChanged;                }            }        }        #region  分页调用方法        /// 
       
          /// 分页          /// 
          /// 
                 /// 
                 private static void verticalScrollBar_ValueChanged(object sender, RoutedEventArgs e)        {            ScrollBar scrollBar = (ScrollBar)sender;            object valueObj = scrollBar.GetValue(ScrollBar.ValueProperty);            object maxObj = scrollBar.GetValue(ScrollBar.MaximumProperty);            if (valueObj != null && maxObj != null)            {                double value = (double)valueObj;                double max = (double)maxObj - 1.0;                if (value >= max)                {                    if (EventLazyListBoxHelperDelegateHandler != null)                    {                        EventLazyListBoxHelperDelegateHandler(max);                    }                }            }        }        public static List
       
         GetVisualChildCollection
        
         (object parent) where T : UIElement        {            List
         
           visualCollection = new List
          
           (); GetVisualChildCollection(parent as DependencyObject, visualCollection); return visualCollection; } public static void GetVisualChildCollection
           
            (DependencyObject parent, List
            
              visualCollection) where T : UIElement { int count = VisualTreeHelper.GetChildrenCount(parent); for (int i = 0; i < count; i++) { DependencyObject child = VisualTreeHelper.GetChild(parent, i); if (child is T) { visualCollection.Add(child as T); } else if (child != null) { GetVisualChildCollection(child, visualCollection); } } } #endregion /// 
             
 ///获取控件的子控件 /// 
 /// 
             
              子控件类
              /// 
             父控件 /// 
              public static T FindChildOfType
             
              (DependencyObject root) where T : class { var queue = new Queue
              
               (); queue.Enqueue(root); while (queue.Count > 0) { DependencyObject current = queue.Dequeue(); for (int i = VisualTreeHelper.GetChildrenCount(current) - 1; 0 <= i; i--) { var child = VisualTreeHelper.GetChild(current, i); var typedChild = child as T; if (typedChild != null) { return typedChild; } queue.Enqueue(child); } } return null; } /// 
               
 /// 高敏感翻页 /// 
 public static bool HightDragSensitivity { get { return false; } } }
              
             
            
           
          
         
        
       
      
     

调用如果需要返回当前状态值,订阅Event事件即可

LazyListBoxHelper.EventLazyListBoxHelperDelegateHandler += (args) =>            {                WebClient client = new WebClient();                if (!client.IsBusy && LazyListBoxHelper._isBusy)                {                    LazyListBoxHelper._isBusy = false;                    LazyListBoxHelper._pageIndex += 20;                    this.progressBar.IsIndeterminate = true;                    this.progressBar.Visibility = Visibility.Visible;                    client.DownloadStringCompleted += (s, e) =>                    {                        if (e.Error == null)                        {                            List
     
       list = GetFoodDetail(e.Result);                            for (int i = 0; i < list.Count; i++)                            {                                this.ListFindData.Items.Add(list[i]);                            }                            LazyListBoxHelper._isBusy = true;                        }                        this.progressBar.IsIndeterminate = false;                        this.progressBar.Visibility = Visibility.Collapsed;                    };                    client.DownloadStringAsync(new Uri(String.Format(@"http://www.douguo.com/store/lists/c1t/{0}{1}", (this.listFindTitle.SelectedItem as FindLinkInfo).Url, LazyListBoxHelper._pageIndex), UriKind.Absolute));                }            };            LazyListBoxHelper.InitLazyBox(ListFindData);        }        private void IninHot()        {            //检查网路            if (NetworkInterface.GetIsNetworkAvailable())            {