private static void MiddleClickCommand_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 = GetMiddleClickCommandWeakEventListener(Element);
if (Value != null)
{
if (Listener == null)
{
Listener = new MiddleClickCommandEventListener();
}
SetMiddleClickCommandWeakEventListener(Element, Listener);
PreviewMouseDownEventManager.AddListener(Element, Listener);
}
else if (Listener != null)
{
SetMiddleClickCommandWeakEventListener(Element, null);
PreviewMouseDownEventManager.RemoveListener(Element, Listener);
}
}
private static void MiddleClickCommand_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 = GetMiddleClickCommandWeakEventListener(Element);
if (Value != null)
{
if (Listener == null)
Listener = new MiddleClickCommandEventListener();
SetMiddleClickCommandWeakEventListener(Element, Listener);
PreviewMouseDownEventManager.AddListener(Element, Listener);
}
else if (Listener != null)
{
SetMiddleClickCommandWeakEventListener(Element, null);
PreviewMouseDownEventManager.RemoveListener(Element, Listener);
}
}
