probniyDE/AddEditPage.xaml

<Page x:Class="Khaustov_ProbniyDE.AddEditPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:Khaustov_ProbniyDE"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="AddEditPage">

    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="200"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="100"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <TextBlock Grid.Column="0"  Text="Услуга" Grid.Row="1" HorizontalAlignment="Right" VerticalAlignment="Center"></TextBlock>
        <TextBlock Grid.Column="0" Grid.Row="2" Text="Изображение" HorizontalAlignment="Right" VerticalAlignment="Center"></TextBlock>
        <TextBlock Grid.Column="0" Grid.Row="3" Text="Длительность" HorizontalAlignment="Right" VerticalAlignment="Center"></TextBlock>
        <TextBlock Grid.Column="0" Grid.Row="4" Text="Стоимость" HorizontalAlignment="Right" VerticalAlignment="Center"></TextBlock>
        <TextBlock Grid.Column="0" Grid.Row="5" Text="Скидка" HorizontalAlignment="Right" VerticalAlignment="Center"></TextBlock>
        <TextBox Grid.Column="1" Grid.Row="1" Text="{Binding Наименование_услуги}" Height="30" Width="250" HorizontalAlignment="Left"/>
        <TextBox Grid.Column="1" Grid.Row="2" Text="{Binding Главное_изображение}" Height="30" Width="250" HorizontalAlignment="Left"/>
        <TextBox Grid.Column="1" Grid.Row="3" Text="{Binding Длительность}" Height="30" Width="250" HorizontalAlignment="Left"/>
        <TextBox Grid.Column="1" Grid.Row="4" Text="{Binding Стоимость}" Height="30" Width="250" HorizontalAlignment="Left"/>
        <TextBox Grid.Column="1" Grid.Row="5" Text="{Binding Действующая_скидка}" Height="30" Width="250" HorizontalAlignment="Left"/>
        <Button Content="Сохранить" Grid.ColumnSpan="2" Grid.Row="6" Name="BtnSave" Click="BtnSave_Click" Margin="312,18,312,5" Height="Auto"></Button>
    </Grid>
</Page>