Test_Kvalif/WpfApp1/Windows/RegistrationWindow.xaml

<Window x:Class="WpfApp1.Windows.RegistrationWindow"
        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:WpfApp1.Windows"
        mc:Ignorable="d"
        Title="Регистрация пользователя" Height="298" Width="316" WindowStartupLocation="CenterScreen" Loaded="WindowLoaded">
    <Grid>
        <Label Content="Фамилия" HorizontalAlignment="Left" Margin="56,15,0,0" VerticalAlignment="Top"/>
        <Label Content="Имя" HorizontalAlignment="Left" Margin="56,46,0,0" VerticalAlignment="Top"/>
        <Label Content="Отчество" HorizontalAlignment="Left" Margin="56,76,0,0" VerticalAlignment="Top"/>
        <Label Content="Логин" HorizontalAlignment="Left" Margin="56,107,0,0" VerticalAlignment="Top"/>
        <Label Content="Пароль" HorizontalAlignment="Left" Margin="56,138,0,0" VerticalAlignment="Top"/>
        <Label Content="Должность" HorizontalAlignment="Left" Margin="56,171,0,0" VerticalAlignment="Top"/>
        <TextBox Name="LastNameText" PreviewTextInput="WordOnlyCheck" HorizontalAlignment="Left" Height="23" Margin="129,19,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <TextBox Name="FirstNameText" PreviewTextInput="WordOnlyCheck" HorizontalAlignment="Left" Height="23" Margin="129,49,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <TextBox Name="MiddleNameText" PreviewTextInput="WordOnlyCheck" HorizontalAlignment="Left" Height="23" Margin="129,79,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <TextBox Name="LoginText" HorizontalAlignment="Left" Height="23" Margin="129,110,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <PasswordBox Name="PasswordText" HorizontalAlignment="Left" Margin="129,141,0,0" VerticalAlignment="Top" Width="120" Height="23"/>
        <Button Content="Зарегистрировать" HorizontalAlignment="Left" Margin="101,215,0,0" VerticalAlignment="Top" Width="107" Height="38" Click="RegistrationClick"/>
        <ComboBox Name="PostComboBox" DisplayMemberPath="Name" HorizontalAlignment="Left" Margin="129,175,0,0" VerticalAlignment="Top" Width="120"/>
    </Grid>
</Window>