How to bind a Property with a textblock From a Class

 public class myClass : INotifyPropertyChanged
    {
        public string myName(string myNameIs)
        {
            Name = myNameIs;
            return myNameIs;
        }


        public string My = "Hasan"; 
        public string Name {

            get { return My; }
            set
            {
                My = value;
                OnPropertyChanged("Name");
            }

        }

        public event PropertyChangedEventHandler PropertyChanged;
        private void OnPropertyChanged(string propertyName)
        {
            if (this.PropertyChanged != null)
            {
                // Raise the PropertyChanged event
                this.PropertyChanged( this, new PropertyChangedEventArgs(
                propertyName));
            }
        }
    }
 public class myClass : INotifyPropertyChanged