private static void OnCommandChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
Control control = dependencyObject as Control;
if (control != null)
{
ControlEventCommandBehavior behavior = GetOrCreateBehavior(control);
behavior.Command = (e.NewValue as ICommand);
}
}
//Factory
private static ControlEventCommandBehavior GetOrCreateBehavior(Control control)
{
string eventName = GetEventName(control);
if (string.IsNullOrEmpty(eventName) || !Behaviors.ContainsKey(eventName))
{
eventName = ClickEventName;
}
ControlEventCommandBehavior behavior =
(ControlEventCommandBehavior)control.GetValue(EventCommandBehaviorProperty);
if (behavior == null)
{
Type behaviorType = Behaviors[eventName];
behavior = (ControlEventCommandBehavior)Activator.CreateInstance(behaviorType, control);
control.SetValue(EventCommandBehaviorProperty, behavior);
}
return(behavior);
}