Before we will be able to open the code for filters we won’t be able to allow for the server-side pagination. Currently, you cannot pass an external list of choices via filter_by_value filter (shown below)
the list is built from the visible data in the instance (not an external data in your database).
You are still able to use the filter by beforeFilter
callback but you would need to create your own option (custom dropdown menu option). Where by reading the input value you send a request to the server to get an amount of rows that pass the condition and then load then via loadData
to the Handsontable instance.