Error rendering control cache error

Question

I have a custom control that shows the value retrieved from the database (product price). This value is cached for performance reasons, and it works great. However, in development mode in Visual Studio 2008, I get an "Error Rendering Control" error message. An unhandled exception occurred. Cache unreachable "

I use ControlDesigner with a very simple GetDesignTimeHtml:

public override string GetDesignTimeHtml()
{
  return "[$9.99]";
}

I was hoping this would fix the problem, but it is not.

Answer 1

, , HttpContext.Current NULL. - :

public object GetFromCache(string key)
{
     var myContext = HttpContext.Current;
     if(myContext != null)
     {
         return myContext.Cache[key];
     }
     return "[Design Time Value]";
}

Answer 2

Cache ASPX ?