HomeAppliance_dealer/kursach_2.0/MainWindow.xaml

<Window x:Class="kursach_2._0.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:kursach_2._0"
        mc:Ignorable="d"
        Title="Дилерская компания" Height="450" Width="350" ResizeMode="NoResize" WindowStartupLocation="CenterScreen">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="1.5*"/>
            <RowDefinition Height="0.5*"/>
            <RowDefinition Height="0.5*"/>
            <RowDefinition/>
            <RowDefinition Height="0.5*"/>
            <RowDefinition/>
            <RowDefinition Height="1.5*"/>
        </Grid.RowDefinitions>
        <Rectangle Fill="#8aabdd" Grid.Row="0" Stroke="Gray"/>
        <Label Content="Авторизация" Grid.Row="0" 
               HorizontalAlignment="Center" VerticalAlignment="Center" 
               FontFamily="Montserrat Medium" FontSize="36"/>
        <TextBlock Text="Логин" Grid.Row="2" 
               Margin="15, 0, 0, 0" VerticalAlignment="Center" 
               FontFamily="Montserrat Light" FontSize="16"/>
        <TextBox Grid.Row="3" x:Name="log"
               Margin="15" VerticalContentAlignment="Center"
               FontFamily="Montserrat Light" FontSize="16"/>
        <TextBlock Text="Пароль" Grid.Row="4"
               Margin="15, 0, 0, 0" VerticalAlignment="Center" 
               FontFamily="Montserrat Light" FontSize="16"/>
        <PasswordBox Grid.Row="5" x:Name="pas"
               Margin="15" VerticalContentAlignment="Center"
               FontFamily="Montserrat Light" FontSize="16"/>
        <Button Grid.Row="6"
               Content="Войти" 
               Margin="45, 30" FontFamily="Montserrat Medium" FontSize="20" Click="AuthClick"/>
    </Grid>
</Window>