User42Ver2/Gitproect/MainWindow.xaml

<Window x:Class="Proetic.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Proetic"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition Height="6*"></RowDefinition>

        </Grid.RowDefinitions>
        <StackPanel>
            <Frame Grid.Row="1" Name="MainFrame" NavigationUIVisibility="Hidden"></Frame>
        </StackPanel>
    </Grid>
</Window>