In the Index.aspx view of my controller, I've done this, and it works:

<% foreach (MyClass item in (IEnumerable)ViewData.Model) { %>
                <tr>
                    <td>
                        <a href="/MyController/Edit/<%= item.Id %>">
                            <%= item.GUID %>
                        </a>
                    </td>
                    <td>
                        <a href="/MyController/Edit/<%= item.Id %>">
                            <%= item.Description %>
                        </a>
                    </td>
                </tr>
            <% } %>

 However, having attempted a copy&paste into a new action's ViewPage, I'm getting

The name 'ViewData' does not exist in the current context
 

WTF?!?

Have you tried compiling the project?  It could be that you haven't done a compile since you added the page, and so intellisense with C# hasn't picked up that you are deriving from a base-class yet.

Thanks,

Scott

I have the same problem . And I confirm that I have complied the solution .

There stilll have a warning that "ViewData" does not exist in current context .

How can I figure it out . ?