Reg expressions in webforms

 hi there,
question regarding regular expressions.
i am building up a table using a string builder. now, i would like to replace some rows based on the following format:
<tr><td style="text-align: right;"></td><td style="text-align: right;"></td><td style="text-align: right;"></td><td style="text-align: right;"></td><td style="text-align: right;"></td><td style="text-align: right;"></td><td style="text-align: right;"></td></tr>
i wrote the following regular expression.
 LitDataDiv2.Text = Regex.Replace(sbRedemptionsContent.ToString(), "<tr><td style=\"text-align: right;\"></td><td style=\"text-align: right;\"></td><td style=\"text-align: right;\"></td><td style=\"text-align: right;\"></ ...