Do you have a example for ajax handler.ash asp.net ?? I need to fill dt.resources=datos_fro_db
There is now a new tutorial available that shows how to load resources and events in JSON format from a server-side endpoint created using ASP.NET Core:
If you want to create an ashx handler in ASP.NET WebForms you can use a similar approach but you need to serialize the data yourself. ASP.NET Core uses Newtonsoft JSON (https://www.newtonsoft.com/json) for serialization and you can do the same.