Putting a Databound form on a MUI page

Nov 8, 2013 at 5:48 PM
I have this user control, works great, until I try to get the ModernWindow to load it as a page. Somehow it's not getting initialized. What am I missing?
<UserControl
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:W3V="clr-namespace:W3.Views"
         x:Class="W3.MainWindow"
        Height="650" Width="825">
  <Grid x:Name="grid">

    <Grid.DataContext>
      <XmlDataProvider x:Name="dataProvider" 
        Source="/Data/testmdf.xml" 
        XPath="/mdf"
        />
    </Grid.DataContext>

    <TextBlock>Helloooo</TextBlock>
    <W3V:MegaView/>


  </Grid>
</UserControl>