We recently migrated our Portal solution from SP2016 to SP2019. After migration we noted that Postback did not work on pages where
Telerik is in use e.g, RadAjax, RadCombobox, or RadGrid. We are using Telerik.Web.UI Version=2019.3.917.45 in web.config.
Page loaded successfully with all the Telerik controls and data in place. But after any click event on any of Telerik controls, The postback did not occur and blank page shows up.
It's very weired because same version is working fine in SP2016 (postback works fine) but not in SP2019. What should we do?
Can you please give us some hint, what's wrong ?
This is what we are using in Web.config