OnPropertyChanged with expressions

gistfile1.cs

public bool Something
{
	get
	{
		return _something;
	}
	set
	{
		if(value == _something) return;
		_something = value;
		OnPropertyChanged(() => Something);
	}
}

// -------------------------------------------------------------

protected virtual void OnPropertyChanged<T>(System.Linq.Expressions.Expression<Func<T>> expr)
{
	// Ensure this executes in the correct thread.
	if(!Deployment.Current.Dispatcher.CheckAccess())
	{
		Deployment.Current.Dispatcher.BeginInvoke(() => OnPropertyChanged(expr));
		return;
	}

	var propertyName = ((System.Linq.Expressions.MemberExpression) expr.Body).Member.Name;

	var handler = this.PropertyChanged;
	if (handler == null) return;
	var e = new PropertyChangedEventArgs(propertyName);
	handler.Invoke(this, e);
}

With a combination of Fielder (https://github.com/SimonCropp/Fielder) and PropertyChanged (https://github.com/SimonCropp/PropertyChanged) you can bind to a public field like this.

public bool Something;