Asp.net - RequiredFieldValidator In Code Behind With ValidationSummary?

I am dynamically creating a list of questions (Labels and TextBoxes in a table).Some questions need to be filled in, so I'm also creating the RequiredFieldValidators in the code behind.To display the ErrorMessages, I use a ValidationSummary.What I want to do is to display a '*' next to the TextBox and the question in the ValidationSummary.On the aspx page it could be done like this:

<asp:RequiredFieldValidator ID="reqFieldValWOline" runat="server" CssClass="errorLabelNoBox"
ControlToValidate="txtWOline" ErrorMessage="the question">*
</asp:RequiredFieldValidator>