Visual Studio 2010 공식 팀 블로그 @vsts2010

    public class Test
    {
        public Test()
        {
            TextBox txt = new TextBox();

            System.Windows.Data.Binding bind = new System.Windows.Data.Binding("MyProperty");
            txt.SetBinding(TextBox.TextProperty, bind);
            txt.DataContext = new MyClass() { MyProperty = "test" };
        }
    }


    public class MyClass : INotifyPropertyChanged
    {
        private string _MyProperty = string.Empty;
        public string MyProperty
        {
            get { return _MyProperty; }
            set
            {
                _MyProperty = value;
                FirePropertyChanged("MyProperty");
            }
        }

        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;
        public void FirePropertyChanged(string name)
        {
            if (PropertyChanged == null)
                return;

            PropertyChanged(this, new PropertyChangedEventArgs(name));
        }

        #endregion
    }

System.Windows.Data.Binding bind = new System.Windows.Data.Binding("MyProperty");