RadzenDropDownGrid Load data from API like we have LoadData on DataGrid

Radzen Studio Blazor Server
1

https://blazor.radzen.com/datagrid-loaddata

2

Why not load your DropDown data on page load?

3

Sorry I meant

RadzenDropDownGrid

How to handle large data ?
when there are lot of data?
on LoadData on Grid can be use for paging but I don't see that option in the case of RadzenDropDownGrid.