private void Attach()
{
this.Detach();
if ((this.target != null) && (this.binding != null))
{
this.listener = this.GetListener();
this.listener.Attach(this.target, this.binding);
}
}
private DependencyPropertyListener GetListener()
{
DependencyPropertyListener listener;
if (FreeListeners.Count != 0)
{
listener = FreeListeners[FreeListeners.Count - 1];
FreeListeners.RemoveAt(FreeListeners.Count - 1);
return listener;
}
listener = new DependencyPropertyListener();
listener.Changed += new EventHandler<BindingChangedEventArgs>(this.HandleValueChanged);
return listener;
}
private void ReturnListener()
{
this.listener.Changed -= new EventHandler<BindingChangedEventArgs>(this.HandleValueChanged);
FreeListeners.Add(this.listener);
this.listener = null;
}
