<CategoryAttribute("Menu")>
Public Property PreferredVerticalDirection As PopupVerticalDirection

Dim instance As UXDropDownButton
Dim value As PopupVerticalDirection
 
instance.PreferredVerticalDirection = value
 
value = instance.PreferredVerticalDirection

[CategoryAttribute("Menu")]
public PopupVerticalDirection PreferredVerticalDirection {get; set;}

public read-write property PreferredVerticalDirection: PopupVerticalDirection; 

CategoryAttribute("Menu")
public function get,set PreferredVerticalDirection : PopupVerticalDirection

[CategoryAttribute("Menu")]
public: __property PopupVerticalDirection get_PreferredVerticalDirection();
public: __property void set_PreferredVerticalDirection( 
   PopupVerticalDirection value
);

[CategoryAttribute("Menu")]
public:
property PopupVerticalDirection PreferredVerticalDirection {
   PopupVerticalDirection get();
   void set (    PopupVerticalDirection value);
}

<Intersoft:UXDropDownButton Content="Button" HorizontalAlignment="Center" VerticalAlignment="Center" PreferredPosition="BottomRight" PreferredVerticalDirection="Up">
        <Intersoft:UXMenuItem Header="UXMenuItem"/>
        <Intersoft:UXMenuItem Header="UXMenuItem"/>
        <Intersoft:UXMenuItem Header="UXMenuItem"/>
        <Intersoft:UXMenuItem Header="UXMenuItem"/>
        <Intersoft:UXMenuItem Header="UXMenuItem"/>
</Intersoft:UXDropDownButton>