# Editor example Tag - single with Ajax search

The autocomplete aspect of `tags` proves its worth when you are working with a large number of options. In such cases you might wish to make Ajax requests to the server as the user is typing to get suitable options (this can help improve start up times when particularly large data sets are used).

In this example Ajax requests for the options are sent as you type into the Country search box.

Note that `multiple` is set to `false` for the field, since we are representing a single value in the join. Also, the `ajax` option is simply set to `true` which means it will inherit the `ajax` value from the Editor initialisation - the server-side libraries for Editor have automatic support for `tags` Ajax search through the `Options` class. Refer to the server-side documentation for full details. Finally, it is worth noting that the server-side will resolve the Continent automatically based on joined data.

Name | Continent | Country
--- | --- | ---
Name | Continent | Country

- JavaScript
- HTML
- CSS
- Ajax
- Server-side script

The JavaScript shown below is used to initialise the table shown in this example:

`const editor = new DataTable.Editor({ ajax: '../php/tagsSingleAjax.php', fields: [ { label: 'Name:', name: 'team.name' }, { label: 'Country:', name: 'team.country', type: 'tags', multiple: false, ajax: true } ], table: '#example' }); new DataTable('#example', { ajax: { url: '../php/tagsSingleAjax.php', type: 'POST' }, columns: [ { data: 'team.name' }, { data: 'continent.name' }, { data: 'country.name' } ], layout: { topStart: { buttons: [ { extend: 'create', editor: editor }, { extend: 'edit', editor: editor }, { extend: 'remove', editor: editor } ] } }, select: true });`

In addition to the above code, the following JavaScript library files are loaded for use in this example:

The HTML shown below is the raw HTML table element, before it has been enhanced by DataTables:

This example uses a little bit of additional CSS beyond what is loaded from the library files (below), in order to correctly display the table. The additional CSS used is shown below:

``

The following CSS library files are loaded for use in this example to provide the styling of the table:

This table loads data by Ajax. The latest data that has been loaded is shown below. This data will update automatically as any additional data is loaded.

The script used to perform the server-side processing for this table is shown below. Please note that this is just an example script using PHP. Server-side processing scripts can be written in any language, using the protocol described in the DataTables documentation.