title: HTML5 email input cannot assign ID and RUNAT="Server" ASP.NET 4
body: <p>Hi I am trying to assign an ID to an HTML5 input so that i can access its value from the code behind in the web form. However with the this code:</p>
  
  <pre><code> &lt;input type="email" required autofocus placeholder="Email Address" class="txt-input txt-input-username" ID="myTextBox" runat="server" /&gt;
  </code></pre>
  
  <p>Visual Studio 2010 is telling me that it cannot resolve the symbol ID="myTextBox".</p>
  
  <p>Any ideas on how i can fix this because i have been searching for an answer for nearly a day? thanks</p>