RKIS/RKIS/Views/Authorization.xaml

<Window x:Class="RKIS.Authorization"
        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:RKIS"
        mc:Ignorable="d"
        Title="Авторизоваться" MinHeight="350" MinWidth="700" Height="350" Width="700" MaxHeight="450" MaxWidth="800">
    <Grid Background="LightBlue">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="2*"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Label Foreground="Black" Content="Логин: " FontSize="20" Grid.Column="1" Grid.Row="1" Height="35" HorizontalContentAlignment="Center" VerticalContentAlignment="Bottom" VerticalAlignment="Bottom" HorizontalAlignment="Right"/>
        <TextBox Foreground="Black" Text="{Binding User.Login}" Grid.Column="2" Grid.Row="1" Height="25" FontSize="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="200"/>
        <Label Foreground="Black" Content="Пароль: " FontSize="20" Height="35" Grid.Column="1" Grid.Row="2" HorizontalContentAlignment="Center" VerticalContentAlignment="Bottom" VerticalAlignment="Bottom" HorizontalAlignment="Right"/>
        <PasswordBox Name="textBox_Password" Foreground="Black" Grid.Column="2" Grid.Row="2" Height="25" FontSize="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="200"/>
        <Button Command="{Binding Registration}" Grid.Column="1" Grid.Row="3" Content="Регистрация" FontSize="20" Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Bottom" Width="130"/>
        <Button Command="{Binding Authorization}" CommandParameter="{Binding ElementName=textBox_Password}" Grid.Column="2" Grid.Row="3" Content="Авторизоваться" FontSize="20" Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Bottom" Width="150"/>
    </Grid>
</Window>