public class MyVM : BaseComponent
{
		private HandleRef swigCPtr;
		
		// bindable prop
		public string MyTxt { get; set; }
		
		public static void Register()
	        {
	             BaseComponent.Extend_BaseComponent("MyVM", typeof(MyVM));
	        }
	
	    public MyVM(IntPtr cPtr, bool cMemoryOwn)
	        : base(cPtr, cMemoryOwn)
	    {
	        swigCPtr = new HandleRef(this, cPtr);
			
			// Init bindable prop
			MyTxt = "Hello World";
	    }
	
	    public MyVM()
	        : this(Noesis.Reflection.DoInstantiateExtend("MyVM"), true)
	    {
			Noesis.Reflection.DoSetExtendHandle("MyVM", swigCPtr.Handle, this);
	    }
	
	    public override void Dispose()
	    {
	        lock (this)
	        {
	            if (swigCPtr.Handle != IntPtr.Zero)
	            {
	                if (swigCMemOwn)
	                {
	                    swigCMemOwn = false;
	                    Noesis.Reflection.DoDeleteExtend("MyVM", swigCPtr.Handle);
	                }
	                swigCPtr = new HandleRef(null, IntPtr.Zero);
	            }
	            GC.SuppressFinalize(this);
	            base.Dispose();
	        }
	    }
};

MyVM.Register();

this.mRoot.SetDataContext(new MyVM());

<TextBlock x:Name="Title" Text="{Binding MyTxt}" ...