How to reinitialize dataTables with newly fetched data from server using ajax in MVC

The error message http://datatables.net/tn/3 states the problem precisely. You're re-initializing the table with different options in fetchNews().

You need to destroy the table first, see http://datatables.net/manual/tech-notes/3#destroy. You can do that with $("#dailyNews").dataTable().fnDestroy() (DataTables 1.9.x) or $("#dailyNews").DataTable().destroy() (DataTables 1.10.x).

function fetchNews(context)
{
     if(context!="")
     {
        // Destroy the table
        // Use $("#dailyNews").DataTable().destroy() for DataTables 1.10.x
        $("#dailyNews").dataTable().fnDestroy()

        $("#dailyNews").dataTable({
           // ... skipped ...
        });
    }
}

Alternatively, if you're using DataTables 1.10.x, you can initialize the new table with additional option "destroy": true, see below.

function fetchNews(context)
{
     if(context!="")
     {
        $("#dailyNews").dataTable({
            "destroy": true,
            // ... skipped ...
        });
    }
}

This worked for me after a lot of research:- First check if dataTable exist or not, if does destroy the dataTable and then recreate it

if ($.fn.DataTable.isDataTable("#mytable")) {
  $('#mytable').DataTable().clear().destroy();
}

$("#mytable").dataTable({...
                       
                });

Datatables has a retrieve option. If your table receive other content after inicialization you can set the parameter: retrieve: true,

You can watch the documentation here: https://datatables.net/reference/option/retrieve

$("#body_data").load("/Admin/GetDailyNews", function () {
      $("#dailyNews").dataTable({
                retrieve: true,
                "lengthMenu": [[5, 10, 25, 50, -1], [5, 10, 25, 50, "All"]],
                "columnDefs": [{ "targets": 3, "orderable": false }],
                "pagingType": "full_numbers",
                "oLanguage": { "sSearch": "" },
                "deferRender": true
      });

}