How to hide the header of the TabNavigationItem in TabNavigationControl?

<Window x:Class="DockingManager_new.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
Title="MainWindow" Height="350" Width="525">
<Grid x:Name="Grid1">
<syncfusion:TabNavigationControl x:Name="TabNavigation" HeaderVisibility="Collapsed" >
<syncfusion:TabNavigationItem Header="TabItem1"/>
<syncfusion:TabNavigationItem Header="TabItem2"/>
<syncfusion:TabNavigationItem Header="TabItem3"/>
</syncfusion:TabNavigationControl>
</Grid>
</Window>

using Syncfusion.Windows.Tools.Controls;
namespace DockingManager_new
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
TabNavigationControl _Tabnavigation = new TabNavigationControl();
_Tabnavigation.HeaderVisibility = Visibility.Collapsed;;
TabNavigationItem item1 = new TabNavigationItem();
item1.Header = "TabItem1";
TabNavigationItem item2 = new TabNavigationItem();
item2.Header = "TabItem2";
TabNavigationItem item3 = new TabNavigationItem();
item3.Header = "TabItem3";
Grid1.Children.Add(_Tabnavigation);
}
}
}