<CategoryAttribute("Common Properties")>
Public Property IsChecked As Nullable(Of Boolean)

Dim instance As UXTreeViewItem
Dim value As Nullable(Of Boolean)
 
instance.IsChecked = value
 
value = instance.IsChecked

[CategoryAttribute("Common Properties")]
public Nullable<bool> IsChecked {get; set;}

public read-write property IsChecked: Nullable; 

CategoryAttribute("Common Properties")
public function get,set IsChecked : Nullable

[CategoryAttribute("Common Properties")]
public: __property Nullable<bool> get_IsChecked();
public: __property void set_IsChecked( 
   Nullable<bool> value
);

[CategoryAttribute("Common Properties")]
public:
property Nullable<bool> IsChecked {
   Nullable<bool> get();
   void set (    Nullable<bool> value);
}