gistfile1.cs

	public class MyObject:INotifyPropertyChanged
	{

		public ICommand Comand { get; set; }

		private string inputText;

		public string InputText
		{
			get { return inputText; }
			set
			{
				if (value != inputText)
				{
					PropertyChanged(this, new PropertyChangedEventArgs("InputText"));
				}
				inputText = value;
			}
		}

		private string outputText;

		public string OutputText
		{
			get { return outputText; }
			set
			{
				if(value!=outputText)
				{
					PropertyChanged(this, new PropertyChangedEventArgs("OutputText"));
				}
				outputText = value;
			}
		}

		public event PropertyChangedEventHandler PropertyChanged;
	}