Virtualized FluentDataGrid: ItemsProvider with unknown total count

[ghood97]

I am displaying a data grid with data that comes from Azure Table Storage which does not have a native paging API. Instead, it uses continuation tokens to be able to efficiently walk through pages of the table entities sequentially. I am using ItemsProvider and the issue that I am facing is that I don't know the total count of the table rows until I reach the end of the table data. Is it possible to use the data grid with virtualize=true and with an unknown total item count? The way I am currently trying to achieve this is by setting a very large total count (100,000) until the end of the data is reached, at which point I use the real row count for the total count.

With the above implementation, I am experiencing weird behavior where the grid constantly requests grid items, alternating between startIndex = 1, count = 19, and startIndex = 2, count = 19. (The requests alternate between startIndex = 1 and startIndex = 2, in a seemingly infinite loop)