史蒂文 :: Release 2.0

Ensure that you escape any hidden malicious script within comments posted to your blog or discussion board. Use the HtmlEncode method to encode everything and then selectively re-encode the safe Html characters you wish to support.

This means that when someone adds in a SCRIPT element, it will be harmlessly encoded as and so will not be interpreted and executed by the browser.

An example is show below.

StringBuilder sb = new StringBuilder(HttpUtility.HtmlEncode(comments.Text));
sb.Replace("&lt;b&gt;", "<b>");
sb.Replace("&lt;i&gt;", "<i>");
sb.Replace("&lt;/b&gt;", "</b>");
sb.Replace("&lt;/i&gt;", "</i>");

SaveData(sb.ToString());