DependencyProperty equivalent for Xamarin Forms.

I'm writing a XAML + MVVM project for testing porpuses. So far i haven't had any problems trying to port my Windows code to Xamarin except for the DependencyProperty. Is there a way to get it working or probably a equivalent? Here is what i want to get working:

This is the dependencyproperty i want to use in Xaml:

public static readonly DependencyProperty MethodParameterProperty = DependencyProperty.RegisterAttached("MethodParameter", typeof(string), typeof(EventBehaviour), new PropertyMetadata(IsMethodChanged));

Here the setter:

public static void SetMethodParameter(DependencyObject d, string value) { d.SetValue(MethodParameterProperty, value); }

Here the event called:

private static void IsMethodChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { var element = d as FrameworkElement; if (element != null) { // Create events here element.PreviewMouseUp += element_PreviewMouseUp; } }