WPF. How to print WrapPanel?

Question

WPF

It is necessary to send to print (to the printer) WrapPanel with different elements. I created several UserControls and populate them with Children.Add(MyUserControl)
I print with:

var visualsPage = new List<Visual>();
var dialog = new PrintDialog();
            if (dialog.ShowDialog() == true)
            {
    //Подготовка к печати
             }

        dialog.PrintDocument(new Paginator(visualsPage.ToArray()), "Печать");

1) The actual question is how to convert the WrapPanel to a Visual (To put it in a visualsPage)
2) Is it possible (is it worth it) to modify the old way so that you can use several types of elements in the WrapPanel
Previously worked with one type of elements in the WrapPanel

for (int i = 0; i < IcBook.Items.Count; i++)
                {
                    page.Add((Visual)IcBook.ItemContainerGenerator.ContainerFromIndex(i));
                }

Where the icbook looked something like this:

<Grid Name="MainGrid">
        <ItemsControl Name="IcBook" ItemsSource="{Binding}">
            <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                    <Grid/>
                </ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <ItemsControl ItemsSource="{Binding LebelList}" Padding="20">
                        <ItemsControl.ItemsPanel>
                            <ItemsPanelTemplate>
                                <WrapPanel/>
                            </ItemsPanelTemplate>
                        </ItemsControl.ItemsPanel>
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <Border Width="376.5" BorderBrush="Black" BorderThickness="3">
                                    <Grid>
<!--Структура элемента WP-->

                                    </Grid>
                                </Border>
                            </DataTemplate>
                        </ItemsControl.ItemTemplate>
                    </ItemsControl>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
    </Grid>