Hi Alex,
Thanks for contacting Syncfusion support.
Query: “Is this
possible or is the data in the DataManager not publicly accessible?”
We understand your requirement, but we would like to inform you
that while using SfDataManager component to fetch the datasource, only the
current page records will returned from server or database and displayed in
Grid. Current page records can be found using GetCurrentViewRecordsAsync()
method of grid. Please find the below API documentation link for your
reference.
https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.Grids.SfGrid-1.html#Syncfusion_Blazor_Grids_SfGrid_1_GetCurrentViewRecordsAsync
Using this method, you can find the current page records and
perform the own calculations and display the values in Custom aggregate. Please
get back to us if you have further queries.
Regards,
Vignesh Natarajan