'Declaration Public Property PreferredWidth As Nullable(Of Single)
public Nullable<float> PreferredWidth {get; set;}
This property is only applicable when the Layout property is set to 'Fixed'.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2