Select lets users choose one or multiple values from a known dropdown list. Use it in one ngs-form-field for forms, filters, settings, table filters, and admin configuration fields when the available options are predefined.
Use ngs-select with ngs-option for each option and ngs-optgroup when options need visible grouping. Select supports placeholder, required and disabled states, single and multiple selection, Angular forms, value, selectionChange, custom trigger content, and optional header, body, and footer slots for richer dropdown panels.
Do not use Select as a command menu, action list, route navigation, compact mode switch, simple visible radio group, rich card choice, or free text search input. Use Menu, Navigation, Tabs, Segmented, Radio, RadioCard, or Autocomplete when those match the job better. Use dedicated selectors such as CountrySelect, CurrencySelect, DateFormatSelect, or TimezoneSelect when the domain already has its own component.