Source = new BitmapImage( new Uri( WangCaiConfig.GetCurrentDirectory() + imgStr, UriKind.RelativeOrAbsolute))
this.PictureImage.Source = new BitmapImage( new Uri(img, UriKind.RelativeOrAbsolute));
Canvas.Right="10"： Canvas.SetRight(stateImage, 0);
Canvas.Bottom="0" ： Canvas.SetBottom(stateImage, 0);
： Margin = new Thickness(20, 0, 0, 0),
Padding="5,0,0,0"： Padding = new Thickness(5, 0, 0, 0),
Foreground ="#333"： Foreground = new SolidColorBrush((Color )ColorConverter .ConvertFromString("#333"))
Style = (System.Windows.Style)FindResource( "FriendPhoneStyle"),
canvas.Background = Brushes.White;
Background = new SolidColorBrush((Color )ColorConverter .ConvertFromString("#fff")),
//获取文件夹的路径，放进数组中
path = WangCaiConfig.GetCurrentDirectory() + "RecommendPictures" ;
dirs = Directory.GetFiles(path);
IsNullOrWhiteSpace（不为空）
HorizontalAlignment = HorizontalAlignment.Stretch,
this.RegisterName( "LXR_List" + user.Id, canVasRoot_button);注册事件
设置位置
Canvas.SetRight(canVasRoot_button_canvas_image_2, 0);
Canvas.SetBottom(canVasRoot_button_canvas_image_2, 0);
取下一级控件
var button = canva.Children[1] as Button;