<BindableAttribute(True)> _
Public Property IsThreeState As Boolean

Dim instance As ToggleButton
Dim value As Boolean

value = instance.IsThreeState

instance.IsThreeState = value

[BindableAttribute(true)]
public bool IsThreeState { get; set; }

[BindableAttribute(true)]
public:
property bool IsThreeState {
    bool get ();
    void set (bool value);
}

/** @property */
/** @attribute BindableAttribute(true) */
public boolean get_IsThreeState()
/** @property */
/** @attribute BindableAttribute(true) */
public  void set_IsThreeState(boolean value)

public function get IsThreeState () : boolean
public function set IsThreeState (value : boolean)

<object IsThreeState="bool" .../>