We recommend using the client-side Init event instead of the $(document).ready function when it is necessary to initialize a control's properties at startup on the client side.
ASPxImageSlider - "GetNavigationBarStrategy is null" error occurs on page load
Answers approved by DevExpress Support
We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.
Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.
- v15.1.8Download Official Update