Cannot reinitialise DataTable - dynamic data for datatable

Question

I have a datatable showing all employees. It is working fine for all employees on document.ready. I have a select tag containing the type of employees like

Answer 1

Try something like below

    var $table=$('#example').dataTable({
                    "aaData": response.data,
                });


    $table.fnDestroy();

Answer 2

This helped me:

var table = $('#example').DataTable( {
    // Clear previous data
    destroy: true,
    // Load new data with AJAX from data.json file.
    ajax: "data.json" 
} );

Answer 3

This tech note section from datatables explains the reason for this warning. Relevant information from there:

This error is triggered by passing in options to a DataTables constructor object when the DataTable instance for the selected node has already been initialised. For example:

$('#example').dataTable( {
    paging: false
} );


$('#example').dataTable( {
    searching: false
} );

The above documentation explains two ways to deal with this.

1. Retrieve: It explains how to apply additional options after the initialization (works even if it is not initialized before) by using setting retrieve to true as follows:

table = $('#example').DataTable( {
    retrieve: true,
    paging: false
} );

2. Destroy: In this case you can destroy the object explicitly by calling table.destroy(); and then creating the table again. Or you can simply pass destroy: true option as mentioned in the accepted answer.

   table = $('#example').DataTable( {
       paging: false
   } );
   
   table.destroy();
   
   table = $('#example').DataTable( {
       searching: false
   } );
   

Using destroy:true option:

$('#example').DataTable( {
    destroy: true,
    searching: false } );

Note: This error may also occur if you include your javascript file that creates the dataTable multiple times. I was using apache tiles and included it in base as well as extended definition which also resulted in this error.

Answer 4

In the current version of DataTables (1.10.4) you can simply add destroy:true to the configuration to make sure any table already present is removed before being re-initialised.

$('#example').dataTable({
    destroy: true,
    aaData: response.data
});