MediaElement.Stretch Property
.NET Framework 4.5
Gets or sets a Stretch value that describes how a MediaElement fills the destination rectangle.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
<object Stretch="Stretch" .../>
Property Value
Type: System.Windows.Media.StretchThe stretch value for the rendered media. The default is Uniform.
The following illustration demonstrates the different Stretch values.
Different gradient spread methods

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.