Sorry, just realized you were doing this for windows forms. I did the following with a web form.

I have the following property:

    Public ReadOnly Property Test() As String
        Get
            Test = "Hello"
        End Get
    End Property

In the HTML of the webform, I added the following to asp:TextBox id="txtTest":

Text="< %# Test %"

Then where applicable, have the following line of code:

Me.txtTest.DataBind()

Thanks,

Vic