TEST/Кафе/MainWindow.xaml

<Window x:Class="Кафе.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:Кафе"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Label Content="Логин" HorizontalAlignment="Left" Margin="331,146,0,0" VerticalAlignment="Top"/>
        <Label Content="Пароль" HorizontalAlignment="Left" Margin="331,199,0,0" VerticalAlignment="Top"/>
        <TextBox x:Name="textBox_login" HorizontalAlignment="Left" Margin="331,172,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120"/>
        <Button Content="Войти" HorizontalAlignment="Left" Margin="373,260,0,0" VerticalAlignment="Top" Click="Button_Click"/>
        <TextBox x:Name="textBox_password" HorizontalAlignment="Left" Margin="331,225,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120"/>
        <Label Content="Авторизация" HorizontalAlignment="Left" Margin="351,115,0,0" VerticalAlignment="Top"/>

    </Grid>
</Window>