Setup Server-side Filtering on Select
The Select widget has the option to configure server-side filtering, where search queries are sent to the back-end, and responses are used to populate options on the Select widget. You can implement server-side filtering of options in the Select widget by using the filterText binding property.
The filterText is a binding property in a Select widget that allows you to implement server-side filtering of options in the dropdown list. When enabling server-side filtering in the widget, please update the default value to contain both label and value in this format {"label":<label>, "value": <value>} if the default value isn't present in the default options.
The preceding video demonstrates how to enable Server Side Filtering, and you can also refer to this guide to learn more about Server-Side Searching or Filtering.
Sample app for Server Side Filtering.