Thank you for contacting us.
When you navigate to the details page of an item, the URL is auto generated from the news item you have clicked. Meaning that if you click News 1 EN
the URL of the page will contain the URL of the news item and the widget will resolve the item and show details.
If you are already in the details of a news item (the URL of the page is http://localhost:8000/en/home-en/2014/12/25/news-en) and then you click the other language ('ar'), then the page should be refreshed and the list should be displayed.
Can you please describe what is your set-up for the details page in steps and what is your business case that you are trying to achieve?
Thank you for your cooperation.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items