pr12/practica12/MainWindow.xaml

<Window x:Class="practica12.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:practica12"
        mc:Ignorable="d"
        Style="{StaticResource ResourceKey= BColor}"
        Title="MainWindow" Height="638" Width="950">
    <Grid>
        <Frame Name = "frm" Grid.Row="1" NavigationUIVisibility="Hidden">

        </Frame>
    </Grid>
</Window>