ToursApp/AddEditPage.xaml

<Page x:Class="Savelev_ToursApp.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:Savelev_ToursApp"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="AddEditPage">

    <Grid Background="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}">
        <Grid.RowDefinitions>
            <RowDefinition Height="97*"/>
            <RowDefinition Height="132*"/>
            <RowDefinition Height="109*"/>
            <RowDefinition Height="112*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="27*"/>
            <ColumnDefinition Width="133*"/>
        </Grid.ColumnDefinitions>
        <TextBlock Text="Название" Grid.Row="0" ></TextBlock>
        <TextBlock Text="Количество звёезд" Grid.Row="1"></TextBlock>
        <TextBlock Text="Страна" Grid.Row="2"></TextBlock>
        <TextBlock MaxHeight="100" Grid.Column="1"></TextBlock>
        <TextBlock Grid.Column="1"/>
        <TextBox Text="{Binding Name}" Grid.Column="1" Margin="10,0,22,27" Height="29" VerticalAlignment="Bottom" RenderTransformOrigin="0.5,3.25" Background="{DynamicResource {x:Static SystemColors.InactiveBorderBrushKey}}"/>
        <TextBox Text="{Binding CountOfStars}" Grid.Column="1" Margin="0,0,408,38" RenderTransformOrigin="0.311,0.92" Grid.Row="1" Background="{DynamicResource {x:Static SystemColors.InactiveBorderBrushKey}}" HorizontalAlignment="Right" Width="241" Height="34" VerticalAlignment="Bottom">
            <TextBox.RenderTransform>
                <TransformGroup>
                    <ScaleTransform/>
                    <SkewTransform AngleY="-0.112"/>
                    <RotateTransform/>
                    <TranslateTransform Y="-0.386"/>
                </TransformGroup>
            </TextBox.RenderTransform>
        </TextBox>
        <ComboBox SelectedItem="{Binding Country}" x:Name="ComboCountries" DisplayMemberPath="Name" Grid.Row="2" Grid.Column="1" Margin="0,0,10,31" Height="38" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="645"></ComboBox>

        <Button Content="Сохранить" Grid.ColumnSpan="2" Grid.Row="3" Name="BtnSave" Click="BtnSave_Click"></Button>
    </Grid>
</Page>