调用INotifyPropertyChanged的PropertyChanged事件的最佳方法是什么？

public class MyClass : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    private string myProperty;
    public string MyProperty
    {
        get { return myProperty; }
        set
        {
            myProperty = value;
            OnPropertyChanged("MyProperty");
        }
    }

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChangedEventHandler handler = PropertyChanged;
        if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
    }
}