Intellisense in .aspx for new tags added to the web.config pages/controls element

Question

When I add an element in the controls node, the .aspx doesn't reflect it immediately. Often, down the road in the development, it will show up (when I could have used it before).

Obviously Visual Studio uses a cache somewhere. How do I refresh that cache so I can get intellisense in the .aspx for properties and what not?

  <pages>
    <controls>
        <add tagPrefix="asp" namespace="System.Web.DomainServices.WebControls" assembly="System.Web.DomainServices.WebControls"/>
    </controls>
  </pages>

Answer 1

Try adding the assemblies in the Web.config too (assuming it is a different assembly to your main one):

<add assembly="System.Web.DomainServices.WebControls, Version=...."/>

Answer 2

Obviously you will be getting errors in the code behind. Comment the code causing error. Build the solution.Then uncomment the code. Build the solution. See whether it is working