Silverlight: How to receive notification of a change in an inherited DependencyProperty

Question

I have a control which inherits from (you guessed it) Control. I want to receive a notification whenever the FontSize or Style properties are chang

Answer 1

It's a rather disgusting hack, but you could use a two-way binding to simulate this.

i.e. have something like:

public class FontSizeListener {
    public double FontSize {
        get { return fontSize; }
        set { fontSize = value; OnFontSizeChanged (this, EventArgs.Empty); }
    }

    public event EventHandler FontSizeChanged;

    void OnFontSizeChanged (object sender, EventArgs e) {
      if (FontSizeChanged != null) FontSizeChanged (sender, e);
    }
}

then create the binding like:

then hook up to the listener's event in your control subclass.