NavigationWindow - Where is it?

Question

Hey. My WPF application is becoming a real pain. I have created a Window and would like to load another page when I click on a button. I assumed this would be straightforward, but it doesn't seem to be. I manage to load the other page by using this.content = new UserPage(). However, from this UserPage, I can't get back to my main window. I can't use this.content because the window can't be a child.

Therefore, I searched around and found out I should be using NavigationService to make things a lot easier. I tried to use NavigationService.GetNavigationService(this) but this didn't work as it always returned null. I figured it's because my main window is derived from Window and not NavigationWindow. Is there a way to convert my Window into a NavigationWindow without starting the project again? Whenever I create a new file, there's no NavigationWindow template - only Window, Page, User Control etc...

I tried manually replacing the XAML with NavigationWindow and it ran fine, but the NavigationService method still returned null. There was a bar at the top as well with back and forward arrow (both disabled), but I don't really need this. I would just like to use the Navigate() method so that I can easily switch between pages. Any ideas on what I can do?

Thanks for any help, this is driving me nuts! :)

Answer 1

I tried manually replacing the XAML with NavigationWindow and it ran fine, but the NavigationService method still returned null

You don't need the NavigationService if your window is already a NavigationWindow. NavigationWindow has a Navigate method.

You can also use a standard Window and put a Frame control on it. It works roughly like a NavigationWindow, except that it's embedded in a window

Answer 2

I've done that but haven't been able to work out how to get the parent window reloaded from a vb.net statement in the page which is located in the frame. I have some code in the window_loaded function I wish to execute.