Getting 'this' pointer inside dependency property changed callback

Question

I have the following dependency property inside a class:

class FooHolder
{
    public static DependencyProperty CurrentFooProperty = DependencyProperty.Regis         


        

Answer 1

Something like this : (you'll have to define UnwireFoo() and WireFoo() yourself)

private static void OnCurrentFooChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
    FooHolder holder = (FooHolder)d; // <- something like this

    holder.UnwireFoo(e.OldValue as Foo);
    holder.WireFoo(e.NewValue as Foo);
}

And, of course, FooHolder must inherit from DependencyObject