We have a SFNavigationdrawer with an SfTreeView on the DrawerContentView as a menu
in same case on itemtapped on the SfTreeView we have to push a new page.
in popasync the navigation and coming back to the root page.
The SfTreeView dissapear when we set the page containing the SFNavigationdrawer (NavigationPage.HasNavigationBar="False")
but when the(NavigationPage.HasNavigationBar="True") there is no change in the drawerContentview and we can find our SfTreeView .