Data table custom ajax filter

Question

I am using a data table with server-side processing in my react application. I have a custom search field and one select dropdown for filtering the rows. When I change the select option and click on the submit button I want to filter the table based on a column. For search, I am using $('#table').DataTable().search(e.target.value).draw(); I know we can pass additional data to ajax call to filter and use $('#table').DataTable().ajax.reload();. But the problem is I only want the select filter to work on button click. If I pass the value of the select dropdown in ajax the filter will work for every ajax request sent to the server.