TextBlock Alignment inside a radiobutton Windows Phone

Question

I want to create a textbox inside a radiobutton in Windows Phone 7 in order to show multi-line text.

            RadioButton rb = new RadioButton();
            rb.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
            rb.VerticalAlignment = System.Windows.VerticalAlignment.Center;
            rb.Height = 104;
            rb.Width = 396;

            TextBlock txt = new TextBlock();
            txt.TextWrapping = TextWrapping.Wrap;
            txt.Height = 72;
            txt.FontSize = 22;
            txt.Width = 300;
            txt.VerticalAlignment = System.Windows.VerticalAlignment.Center;
            txt.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
            txt.Text = "Some Text";
            rb.Content = txt;

The Problem is that the Text in the Textblock can be either long or short. If it is long , it is fine. But if it is short, it aligns to the top border of the textblock, and it looks ugly. But I can't decrease the height of the textblock, because there will be not enough space in case of 2 or 3 lines of text. How can I solve this problem?

Answer 1

You can set Height of the textbox to double.NaN in your code like txt.Height = double.NaN;.