Hi Sebastian,
Greetings from Syncfusion support
You can select the Grid rows programmatically by using selectRows()
method of Grid. By default, in our EJ2 Grid the selectRows method will
select the current page records only, because the next page records and the row
elements will be generated only if you move to the next page, and we are not
sure about the total available records count and row index values. So, you can
select the current page records only when you enable the pagination in the Grid
component. Which is the default behavior of our EJ2 Grid.
API: https://ej2.syncfusion.com/documentation/api/grid/#selectrows
Regards,
Rajapandi R