I am building a NavigationView project where users can switch between multiple themes at runtime.
The NavigationView contains 5 navigation items in total, and 2 of them have hierarchical child items.
The initial theme works correctly.
However, after running the application, if I select a child item in the hierarchy, for example `Products > Categories`, and then change the theme while that view is active, some issues occur.
The issues I observed are:
1. `RadNavigationView.SelectedItem` still appears to point to the child item `Categories`, but in the UI, the parent item appears collapsed, as if all expanded states were closed.
2. If issue 1 is resolved manually, the user may be able to click the item again with the mouse. However, I suspect that changing the theme with the keyboard arrow keys in the Theme ComboBox may behave differently from selecting a theme with the mouse.
I could not find a Telerik demo that shows how to handle runtime theme switching with a hierarchical `RadNavigationView`.
Could you help identify the cause of this behavior?
Also, is there a recommended approach for preserving the selected item, expanded state, and item styles when changing themes at runtime in a hierarchical `RadNavigationView`?
I have attached a sample project. The license key has been removed.
The NavigationView contains 5 navigation items in total, and 2 of them have hierarchical child items.
The initial theme works correctly.
However, after running the application, if I select a child item in the hierarchy, for example `Products > Categories`, and then change the theme while that view is active, some issues occur.
The issues I observed are:
1. `RadNavigationView.SelectedItem` still appears to point to the child item `Categories`, but in the UI, the parent item appears collapsed, as if all expanded states were closed.
2. If issue 1 is resolved manually, the user may be able to click the item again with the mouse. However, I suspect that changing the theme with the keyboard arrow keys in the Theme ComboBox may behave differently from selecting a theme with the mouse.
I could not find a Telerik demo that shows how to handle runtime theme switching with a hierarchical `RadNavigationView`.
Could you help identify the cause of this behavior?
Also, is there a recommended approach for preserving the selected item, expanded state, and item styles when changing themes at runtime in a hierarchical `RadNavigationView`?
I have attached a sample project. The license key has been removed.
1 Answer, 1 is accepted
0
Hello, Dodd,
I already replied to you in the other thread you submitted on the same topic. Please see my response there.
I would kindly ask that you submit only one thread per topic, as creating multiple threads for the same issue can slow down our response times. Thank you for your understanding.
Regards,
Nadya | Tech Support Engineer
Progress Telerik
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