A potentially dangerous Request.Form value was detected
<p>I am Getting this error </p>

<p><code>A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtEmbed="&lt;embed src='http://a...").</code> </p>

<p>when i am opening a modalpopup extender on link button click and in code behind i am assigning the textbox </p>

<pre><code>value="&lt;embed src='http://auddia.com/player-viral.swf' height='20' width='200' allowscriptaccess='always' flashvars='volume=100&amp;autostart=false&amp;file=http://auddia.com/Audios/audioStream_1299222864888_19.flv&amp;plugins=viral-1d'/&gt;
</code></pre>

<p>and also i set the <code>ValidateRequest="false"</code> in the page directive's. and in code behind i also use <code>HttpUtility.HtmlEncode</code> . but again and again i am facing this error </p>

<p><code>"A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtEmbed="&lt;embed src='http://a...").".</code></p>

<p>Please help me ASAP.</p>
