silverlight imagesource赋值与转换

this.abc.Source = new BitmapImage(new Uri("/1.jpg", UriKind.RelativeOrAbsolute));

Uri uri = new Uri("1.jpg", UriKind.Relative);
ImageSource imgSource = new System.Windows.Media.Imaging.BitmapImage(uri);   
this.abc.SetValue(Image.SourceProperty, imgSource);

this.abc.Source = new BitmapImage(new Uri("F:\\1.jpg", UriKind.RelativeOrAbsolute));

 var uri = new Uri("/AppleMenu;component/Res/" + value + ".png", UriKind.Relative);
                IconImage.Source = new System.Windows.Media.Imaging.BitmapImage(uri);