using System.Runtime.CompilerServices;

namespace System.ComponentModel
{
    public abstract class NotifyPropertyChange : INotifyPropertyChanging, INotifyPropertyChanged
    {
        public event PropertyChangingEventHandler PropertyChanging;
        protected void OnPropertyChanging([CallerMemberName] String caller = "")
        {
            if (PropertyChanging != null)
                PropertyChanging(this, new PropertyChangingEventArgs(caller));
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected void OnPropertyChanged([CallerMemberName] String caller = "")
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(caller));
        }
    }
}
