Programming Forums - accessing classes in app

Hello All,I cant figure it out:
I started a new asp.net web application in VS Pro 2005 (herein referenced as VS2005P) and added a folder named App_code (by right clicking on the project). It looks like VS2005P was ok with it as it changed the icon for the folder to a gray folder with a thing on it.

I right clicked and added classes, but when I tried to instantiate those classes from my .aspx files it doesnt recognize them i get that error "type or namespace could not be found....."

**note the code in app_code are my business objects not my code behinds. code behinds are with the .aspx files

code for business class in app_code written by VS2005P:

namespace PropertyPhotos

{

  namespace PropertyPhotos.App_Code

  {

      public class Photos 

      {

            

           ....... code

      }



  }

}

I tried getting rid of the ".app_code" from the namespace, but no work still:

namespace PropertyPhotos

{

    public class Photos

    {

        private string _errorMessage = "";

        private string _thumbsDIR_base = Util.readFromWebConfig("thumbsDIR_base");

        private string _fullSizeDIR_base = Util.readFromWebConfig("fullSizeDIR_base");

     }

}

Here is my .aspx code - this is where i get the error:

namespace PropertyPhotos

{

    public partial class propertyPhotos : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            //string propertyID = Request.QueryString["pid"];

            string propertyID = "1234";



            Photos photos = new Photos(propertyID);

               .... more code

         }

     }

}

The error:

Error        1        The type or namespace name 'Photos' could not be found (are you missing a using directive or an assembly reference?)        E:\.....\Visual Studio 2005\Projects\C21k\PropertyPhotos\PropertyPhotos\PropertyPhotos\propertyPhotos.aspx.cs