NEIntelligentControl-jnxj/NEIntelligentControl2/Pages/Matrix/PageMatrix.xaml

<Page x:Class="NEIntelligentControl2.Pages.Matrix.PageMatrix"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:NEIntelligentControl2.Pages.Matrix"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="PageMatrix" Unloaded="Page_Unloaded" Loaded="Page_Loaded">

    <Frame x:Name="_FrameMain" NavigationUIVisibility="Hidden"/>
</Page>