public void SetBinding (DependencyProperty dp, Binding binding) {
if (dp == null || binding == null)
throw new ArgumentNullException ();
if (!bindings.Contains (binding))
bindings.Add (binding);
binding.AddTargetProperty (this, dp);
binding.SourceUpdated +=
(s, e) => {
var bind = (Binding)s;
if (bind.Mode != BindingMode.OneWayToSource) {
if ( bind.IsBound ( ) ) {
var value = bind.GetSourceValue ();
foreach (var prop in bind.GetTargetProperties(this)) {
this.SetValue (prop, value);
}
}
}
};
if (binding.Source == null)
binding.DataContext = this.DataContext;
binding.OnSourceUpdated ();
}