Hello Kiet,

Yes, using a Frame in the UserTemplateMaximized DataTemplate is an option. However, you will have to obtain the Frame from the Content of the pane and specify UriSource that points to your page.

Another option is to add a ContentPresenter in the datatemplate as follows:

<DataTemplate x:Key="UserTemplateMaximized" >          
       <ContentPresenter Content="{Binding}" />          
</DataTemplate>

this.Content = new WorkTray();

Let me know if you have any questions with this matter.

Thank you very much Vlad.  That works just fine!  I do have one quick question related to the datatemplate.  How do I load a .xaml user control or xaml page into the maximized tile panel?

For example, I have 4 tile panels. 

1)  Work Tray

2) Open Tasks

3) Search Tasks

4) Edit Tasks

Depending on which tile panel is selected, I would like to load one of those xaml pages into the maximized tile panel.

Would it be something like this?

case TileState.Maximized:
                    pane.ContentTemplate = this.LayoutRoot.Resources["UserTemplateMaximized"] as DataTemplate;

                    if (pane.Header.ToString() == "Work Tray")
                    {
                        this.Content = "/Work Tray.xaml";
                    }
                    break;

Or would I have to create a Frame in the panel.  And navigate to the file when the tile is maximized?

Thanks for your help Vlad!

Kiet