How to have the proper focus navigation within the control hosted by Win32 Content in the DockingManager?

// code snippet for setting IsNative Property
<Grid Name="grid1">
<syncfusion:DockingManager UseDocumentContainer="True">
<ContentControl
syncfusion:DockingManager.Header="Dock1"
syncfusion:DockingManager.IsNative="True">
</ContentControl>
<ContentControl
syncfusion:DockingManager.Header="Dock2"
syncfusion:DockingManager.IsNative="True">
</ContentControl>
<ContentControl
syncfusion:DockingManager.Header="Dock3"
syncfusion:DockingManager.IsNative="True">
</ContentControl>
<ContentControl
syncfusion:DockingManager.Header="Dock4"
syncfusion:DockingManager.IsNative="True">
</ContentControl>
<ContentControl
syncfusion:DockingManager.Header="Dock5"
syncfusion:DockingManager.IsNative="True">
</ContentControl>
</syncfusion:DockingManager>
</Grid>

// The code snippet for setting the IsNative Property to DockingManager Child
DockingManager docking = new DockingManager();
ContentControl content1 = new ContentControl();
DockingManager.SetHeader(content1,"Dock1");
DockingManager.SetIsNative(content1,true);
docking.Children.Add(content1);
ContentControl content2 = new ContentControl();
DockingManager.SetHeader(content2,"Dock2");
DockingManager.SetIsNative(content2,true);
docking.Children.Add(content2);
ContentControl content3 = new ContentControl();
DockingManager.SetHeader(content3,"Dock3");
DockingManager.SetIsNative(content3,true);
docking.Children.Add(content3);
ContentControl content4 = new ContentControl();
DockingManager.SetHeader(content4,"Dock4");
DockingManager.SetIsNative(content4,true);
docking.Children.Add(content4);
ContentControl content5 = new ContentControl();
DockingManager.SetHeader(content5,"Dock5");
DockingManager.SetIsNative(content5,true);
docking.Children.Add(content5);
Grid1.Children.Add(docking);