Close popup in user control WPF

<UserControl
    x:Class="Popup.UReceipt"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:Popup">

    <Grid>
        <Button HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Padding="10 5"
                Click="Button_Click">
            <Button.Content>
                <Grid>
                    <TextBlock Text="Click Me"/>
                    <Popup IsOpen="{Binding ShowPopup}"
                           StaysOpen="False">
                        <local:USearch x:Name="Search"/>
                    </Popup>
                </Grid>
            </Button.Content>
        </Button>
    </Grid>

</UserControl>

public partial class UReceipt : UserControl, INotifyPropertyChanged
{
    public UReceipt()
    {
        InitializeComponent();
        DataContext = this;
    }

    public event PropertyChangedEventHandler PropertyChanged;

    private bool showPopup;
    public bool ShowPopup
    {
        get { return showPopup; }
        set
        {
            showPopup = value;
            PropertyChanged?.Invoke(this,
                                    new PropertyChangedEventArgs(nameof(ShowPopup)));
        }
    }


    private void Button_Click(object sender, RoutedEventArgs e)
    {
        ShowPopup = true;
    }
}

<UserControl
    x:Class="Popup.USearch"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Grid Width="100" Height="200" Background="AliceBlue">
        <TextBlock Text="Search"/>
        <Button Content="CLOSE" Padding="10 5"
                Click="Button_Click"
                HorizontalAlignment="Center"
                VerticalAlignment="Center" />
    </Grid>

</UserControl>

public partial class USearch : UserControl
{
    public USearch()
    {
        InitializeComponent();
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        (DataContext as UReceipt).ShowPopup = false;
        e.Handled = true;
    }
}

<UserControl
    x:Class="Popup.UReceipt"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:Popup">

    <Grid>
        <Button HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Padding="10 5"
                Click="Button_Click">
            <Button.Content>
                <Grid>
                    <TextBlock Text="Click Me"/>
                    <Popup x:Name="SearchPopup"
                           StaysOpen="False">
                        <local:USearch x:Name="Search"/>
                    </Popup>
                </Grid>
            </Button.Content>
        </Button>
    </Grid>

</UserControl>

public partial class UReceipt : UserControl
{
    public UReceipt()
    {
        InitializeComponent();
        Search.Host = this;
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        SearchPopup.IsOpen = true;
    }
}

<UserControl
    x:Class="Popup.USearch"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Grid Width="100" Height="200" Background="AliceBlue">
        <TextBlock Text="Search"/>
        <Button Content="CLOSE" Padding="10 5"
                Click="Button_Click"
                HorizontalAlignment="Center"
                VerticalAlignment="Center" />
    </Grid>

</UserControl>

public partial class USearch : UserControl
{
    public USearch()
    {
        InitializeComponent();
    }

    private UReceipt host;
    public UReceipt Host { set { host = value; } }
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        host.SearchPopup.IsOpen = false;
        e.Handled = true;
    }
}

<UserControl
    x:Class="Popup.UReceipt"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:Popup">

    <Grid>
        <Button HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Padding="10 5"
                Click="Button_Click">
            <Button.Content>
                <Grid>
                    <TextBlock Text="Click Me"/>
                    <Popup x:Name="SearchPopup"
                           StaysOpen="False">
                        <local:USearch x:Name="Search"/>
                    </Popup>
                </Grid>
            </Button.Content>
        </Button>
    </Grid>

</UserControl>

public partial class UReceipt : UserControl
{
    public UReceipt()
    {
        InitializeComponent();
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        SearchPopup.IsOpen = true;
    }
}

<UserControl
    x:Class="Popup.USearch"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Grid Width="100" Height="200" Background="AliceBlue">
        <TextBlock Text="Search"/>
        <Button Content="CLOSE" Padding="10 5"
                Click="Button_Click"
                HorizontalAlignment="Center"
                VerticalAlignment="Center" />
    </Grid>

</UserControl>

public partial class USearch : UserControl
{
    public USearch()
    {
        InitializeComponent();
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        this.GetVisualParent<Popup>().IsOpen = false;
        e.Handled = true;
    }
}

public static class ParentOfTypeExtensions
{
    public static T ParentOfType<T>(this DependencyObject element)
        where T : DependencyObject
    {
        if (element == null) return null;
        return element.GetParents().OfType<T>().FirstOrDefault();
    }

    public static T GetVisualParent<T>(this DependencyObject element)
        where T : DependencyObject
    {
        return element.ParentOfType<T>();
    }

    public static T GetParent<T>(this DependencyObject element)
        where T : FrameworkElement
    {
        return element.ParentOfType<T>();
    }

    public static IEnumerable<DependencyObject>
        GetParents(this DependencyObject element)
    {
        if (element == null)
            throw new ArgumentNullException("element");

        while ((element = element.GetParent()) != null)
            yield return element;
    }

    public static DependencyObject GetParent(this DependencyObject element)
    {
        DependencyObject parent = null;
        try
        {
            parent = VisualTreeHelper.GetParent(element);
        }
        catch (InvalidOperationException)
        {
            parent = null;
        }

        if (parent == null)
        {
            if (element is FrameworkElement frameworkElement)
                parent = frameworkElement.Parent;

            if (element is FrameworkContentElement frameworkContentElement)
                parent = frameworkContentElement.Parent;
        }
        return parent;
    }
}