I havent' used web forms yet, but when this happens with Winforms, it is usually a .dll dependency problem. It either can't find it, or it hasn't compiled correctly. When I do this, it corrects the problem and allows designing again.



>What does it mean when, while opening your project, you get a message that says:
>

>The file could not be loaded into the Web Forms designer.
>Please correct the following error and then try loading it again:
>The designer could not be shown for this file because
>none of the classes within it can be designed.
>Make sure all of the classes used in the page are built or referenced in the project.
>

>
>When I click on it's help button it talks about the
>"@ Page" and "@ Control" directives.
>In the HTML file associated with my Web Form, I see the following line:
>

> <%@ Page Language="vb" AutoEventWireup="false"
>Codebehind="Omnia_Web_Act1.aspx.vb" Inherits="Omnia_Web_Act.WebForm1"
>smartNavigation="True" enableViewState="False" trace="True"  
>

>I'm new to this and don't really know what to do next...
>
>Also, in my code behind page, it starts out as:
>

>Imports System
>Imports System.Data
>Imports System.Data.OleDb
>
>Public Class WebForm1
>    Inherits System.Web.UI.Page
>

>This has been fine, BUT NOW
>Inherits System.Web.UI.Page
>comes up with a blue squiggly line under it...
>when I hover over it the message I get is
>

Reference required to assembly 'System'
>containing the implemented interface 'System.ComponentModel.IComponent'.
>Add one to your project.