A combobox is an input control that combines a text field with a dropdown list, allowing users to either type to filter options or select from a predefined list. It provides an efficient way to handle large datasets while maintaining searchability and accessibility.

SearchableAccessibleKeyboard NavigationMulti-selectCustomizable
When to Use Combobox
Understanding the appropriate use cases for combobox components in your interface.

Primary Use Cases

  • Large Option Sets: When you have many options (>10) that benefit from search
  • Predictive Search: Auto-complete functionality for known values
  • Tagging Systems: Adding multiple tags or categories
  • Data Entry: Forms with searchable reference data

Combobox vs Alternatives

Use Combobox When:
  • • Many options need filtering
  • • Users know what they're looking for
  • • Custom input is allowed
Use Select When:
  • • Few options (<10)
  • • Users need to see all options
  • • No custom input needed

Basic Example

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