Hi Elio,
Thanks for contacting Syncfusion support.
We have analyzed the error message which you have shared with us. We suspect that the problem is because of using older version “ejs.interop.min.js” file in your application. So we suggest you to ensure to use our latest version(17.2.46) script files to overcome the problem you are facing. Please use the below scripts and styles in your application,
For your convenience we have prepared a sample and the sample can be downloaded from the below link. In this sample we have called the “GetSelectedRecords()” method in a button click event.
Please get back to us if you need further assistance.
Regards,
Renjith Singh Rajendran.