There seems to currently be an Issue in the Datatables where if for example:
User is in page 50 and then filters but there are now only 20 pages the user will remain at page 50 (which is now blank).
I have tried to get around this by using the filter_query to trigger a callback if page_count < page_current then set the current page to page_count.
@app.callback( [ Output("calc_data_summary", "page_current"), ], [ Input("calc_data_summary", "filter_query") ], [ State("calc_data_summary", "page_count"), State("calc_data_summary", "page_current"), ], ) def reset_filter_sort_on_datatable(filter, total_pages, current): if total_pages is None or current_page is None: return  if total_pages < current_page: return [total_pages] return [current_page]
However, I found that this code was never running. When I investigated I found that page_count was always returning None and therefore never got past the first if statement.
The documentation (https://dash.plot.ly/datatable/reference) says that
`page_count` ( *number* ; optional): `page_count` represents the number of the pages in the paginated table.
I assumed this to mean that it should return the value of the total amount of pages.
Do I have this correct?
However, I have noticed that