C# authentication XAML code

<Window x:Class="WpfApplication1.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:WpfApplication1"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Label x:Name="label1" Content="username" HorizontalAlignment="Left" Margin="127,63,0,0" VerticalAlignment="Top" Width="84" FontSize="16"/>
        <Label x:Name="label2" Content="password" HorizontalAlignment="Left" Margin="127,124,0,0" VerticalAlignment="Top" Width="84" FontSize="16"/>
        <TextBox x:Name="textBoxUser" HorizontalAlignment="Left" Height="23" Margin="275,66,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Button x:Name="button1" Content="Login" HorizontalAlignment="Left" Margin="320,219,0,0" VerticalAlignment="Top" Width="75" FontSize="13.333" Click="button1_Click"/>
        <Button x:Name="button2" Content="Cancel" HorizontalAlignment="Left" Margin="127,219,0,0" VerticalAlignment="Top" Width="75" FontSize="13.333" Click="button2_Click"/>
        <PasswordBox x:Name="passBoxPwd" HorizontalAlignment="Left" Margin="275,124,0,0" VerticalAlignment="Top" Width="120" Height="23"/>

    </Grid>
</Window>