Custom PageHandler ???   

Hi,

I have 2 pages: IntPage.aspx and StringPage.aspx with the classes
declared in their respective code behind files.
Both pages are declared in the root folder and work fine

Then I have a CustomPageHandlerFactory class (declared in the App_Code
folder):

  public class MyPageHandlerFactory : PageHandlerFactory
  {
    public override IHttpHandler GetHandler(HttpContext context,
string requestType, string virtualPath, string path)
    {
      IHttpHandler myhandler = null;

      if (some boolean condition)
          myhandler = new IntPage();
      else
          myhandler = new StringPage();
      return myhandler;
    }
  } // class MyPageHandlerFactory

But I get a compiler error on IntPage and StringPage -->
"The type or namespace name 'IntPage' could not be found"
"The type or namespace name 'StringPage' could not be found"

It seems to me that, from a page class you can use any class declared
in the App_Code folder but not the other way around.

How can this be solved ?

thx
Chris

date: Fri, 3 Jul 2009 02:20:53 -0700 (PDT)   author:   Chris

Re: Custom PageHandler ???   

the pages are compiled separately into their own dll(s), so they are not 
known when the appcode is compiled. you need to do this lookup at runtime:

var type = BuildManager.GetCompiledPageType(pagePath);
var myhandler = Activator.CreateInstance(type) as IHttpHandler;

-- bruce (sqlwork.com)


Chris wrote:
> Hi,
> 
> I have 2 pages: IntPage.aspx and StringPage.aspx with the classes
> declared in their respective code behind files.
> Both pages are declared in the root folder and work fine
> 
> Then I have a CustomPageHandlerFactory class (declared in the App_Code
> folder):
> 
>   public class MyPageHandlerFactory : PageHandlerFactory
>   {
>     public override IHttpHandler GetHandler(HttpContext context,
> string requestType, string virtualPath, string path)
>     {
>       IHttpHandler myhandler = null;
> 
>       if (some boolean condition)
>           myhandler = new IntPage();
>       else
>           myhandler = new StringPage();
>       return myhandler;
>     }
>   } // class MyPageHandlerFactory
> 
> But I get a compiler error on IntPage and StringPage -->
> "The type or namespace name 'IntPage' could not be found"
> "The type or namespace name 'StringPage' could not be found"
> 
> It seems to me that, from a page class you can use any class declared
> in the App_Code folder but not the other way around.
> 
> How can this be solved ?
> 
> thx
> Chris

date: Fri, 03 Jul 2009 15:58:33 -0700   author:   bruce barker