有没有办法插入一个wpf窗口作为另一个窗口的子窗口

<Window x:Class="MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Main Window" Height="450" Width="800">
    <Grid>
        <ContentControl x:Name="childWindowContainer" />
    </Grid>
</Window>

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        ChildWindow childWindow = new ChildWindow();
        childWindowContainer.Content = childWindow;
    }
}