/product-groups/tridion/tridion-sites/b/techweblog/posts/using-detectchanges-api-in-the-event-handlerRecently I&#39;ve been reviewing the code of the event system extension that prevented some users from changing value of the metadata field. private static void OnComponentSave(Component component, SaveEventArgs args, EventPhases phases) { var session en-USTelligent Community 12 Non-Productionhttps://uat.community.rws.com/product-groups/tridion/tridion-sites/b/techweblog/posts/using-detectchanges-api-in-the-event-handlerTue, 13 Nov 2018 20:05:45 GMT10acfa76-f078-475b-a7ef-fc5b3e8d2934:8b649526-a78f-4a62-b357-84bc29dffd1fRick Pannekoek0<p>Thanks for sharing this hidden gem, Anton!</p> <img src="https://uat.community.rws.com/aggbug?PostID=8029&AppID=95&AppType=Weblog&ContentType=0" width="1" height="1">