Can copy HTML formatted text from clipboard in silverlight?

I need to access clipboard in silverlight.

in winform apllication:

textBox1.Text = Clipboard.Ge开发者_Go百科tText(TextDataFormat.Html);

but, in silverlight I can only get text

textBlock1.Text = Clipboard.GetText();

How can I get the html format of the clipboard ?

Currently this is not supported.