<CategoryAttribute("Layout")>
Public Property Orientation As Orientation

Dim instance As UXStackPanel
Dim value As Orientation
 
instance.Orientation = value
 
value = instance.Orientation

[CategoryAttribute("Layout")]
public Orientation Orientation {get; set;}

public read-write property Orientation: Orientation; 

CategoryAttribute("Layout")
public function get,set Orientation : Orientation

[CategoryAttribute("Layout")]
public: __property Orientation get_Orientation();
public: __property void set_Orientation( 
   Orientation value
);

[CategoryAttribute("Layout")]
public:
property Orientation Orientation {
   Orientation get();
   void set (    Orientation value);
}

<Intersoft:UXStackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
    <Button Content="Button1" Width="80"/>
    <Button Content="Button2" Width="80"/>
    <Button Content="Button3" Width="80"/>
</Intersoft:UXStackPanel>