private static void EnterDownCommand_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
var Element = o as FrameworkElement;
if (Element == null)
{
throw new ArgumentException("Type mismatch", "o");
}
var Value = (ICommand)e.NewValue;
var Listener = GetEnterDownCommandWeakEventListener(Element);
if (Value != null)
{
if (Listener == null)
{
Listener = new EnterDownCommandEventListener();
}
SetEnterDownCommandWeakEventListener(Element, Listener);
PreviewKeyDownEventManager.AddListener(Element, Listener);
}
else if (Listener != null)
{
SetEnterDownCommandWeakEventListener(Element, null);
PreviewKeyDownEventManager.RemoveListener(Element, Listener);
}
}
private static void EnterDownCommand_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
var Element = o as FrameworkElement;
if (Element == null)
throw new ArgumentException("Type mismatch", "o");
var Value = (ICommand)e.NewValue;
var Listener = GetEnterDownCommandWeakEventListener(Element);
if (Value != null)
{
if (Listener == null)
Listener = new EnterDownCommandEventListener();
SetEnterDownCommandWeakEventListener(Element, Listener);
PreviewKeyDownEventManager.AddListener(Element, Listener);
}
else if (Listener != null)
{
SetEnterDownCommandWeakEventListener(Element, null);
PreviewKeyDownEventManager.RemoveListener(Element, Listener);
}
}