Cannot export custom types when using the new Fetch function
Answers approved by DevExpress Support
We have addressed the issue described in this ticket and will include a fix in our next maintenance update. Should you need to apply our fix prior to official release, you can request a hotfix here.
Important Notes:
- Hotfixes may be unavailable for Early Access/Beta builds or updates set for release within a week.
- .NET only: in the NuGet Package Manager, use your personal NuGet feed and check the "Include prerelease" option to view the hotfix package in the "Updates" tab.
- v23.2.3Download Official Update
- v23.1.4Download Official Update
This behavior occurs due to our jQuery Ajax -> Fetch changes that are described in the following thread: Web Reporting - Export and print capabilities now utilize Fetch instead of jQuery Ajax.
As a possible workaround you can try to revert to using the Ajax mechanism as we illustrate here: How to revert to previous behavior.