Gets or sets the width of this instance of Size.
Assembly: System.Windows (in System.Windows.dll)
You can set this value in XAML, but only as part of the attribute syntax for properties that take a Size, or as initialization text of a Size object element. See XAML sections and Remarks sections of Size.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.