Badretdinovprakrika12/WpfApp3/Pages/CustomerMenu.xaml

<Page x:Class="WpfApp3.Pages.CustomerMenu"
      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:WpfApp3.Pages"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="CustomerMenu">

    <Grid>
        <Button Content="Переход 2" Click="ButtonPage2_OnClick" HorizontalAlignment="Left" Margin="66,93,0,0" VerticalAlignment="Top" Width="75"/>
        <Button Content="Переход 3" Click="ButtonPage3_OnClick" HorizontalAlignment="Left" Margin="66,139,0,0" VerticalAlignment="Top" Width="75"/>
        <Button Content="Переход 1" Click="ButtonPage1_OnClick" HorizontalAlignment="Left" Margin="66,47,0,0" VerticalAlignment="Top" Width="75"/>

    </Grid>
</Page>