The AutoComplete enables you to display only those suggestion list items which meet specified criteria.
On every user modification of the input value, the AutoComplete triggers an
onChange event. The event argument contains the typed string value that you can use to filter the source.
To filter the data after a delay, use a similar implementation. You can toggle the
loading property and provide the user with a visual indication of the filtering process.
Minimum Filter Length
The following example demonstrates how to update the data and open the drop-down list of the AutoComplete only after typing a minimum number of characters.