Final/pr13/Views/Auth.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             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"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="pr13.Auth"
             xmlns:vm="using:pr13.ViewModels"
             x:DataType="vm:MainWindowViewModel">

    <StackPanel>
      <TextBlock Margin="10 5 10 0" HorizontalAlignment="Center" FontSize="24">ВХОД</TextBlock>

      <TextBox Margin="10 5 10 0" Watermark="Введите логин" Text="{Binding AuthorizationVM.Login}" Name="Login"/>

      <TextBox Margin="10 5 10 0" Text="{Binding AuthorizationVM.Pass}" PasswordChar="*" Name="Pass" Watermark="Введите пароль"/>
      <Button Margin="10 5 10 0" HorizontalAlignment="Center" Command="{Binding GoAuth}"  >Войти</Button>

    </StackPanel>
</UserControl>