The size of an image control either can be set explicitly using its
Height properties, or the image can depend on its container to determine its size. If the container is a simple container such as a
Image will be displayed using the native dimensions defined in the image file. The
Image.Stretch property is used to control the sizing behavior of the
Image when its size differs from its native image size. The
Stretch property is of type
System.Windows.Media.Stretch, whose values are described in Table 7.1.
The effects of each of these enum values ...