---
title: NSComboBoxDataSource
framework: appkit
role: symbol
role_heading: Protocol
path: appkit/nscomboboxdatasource
---

# NSComboBoxDataSource

## Declaration

```swift
protocol NSComboBoxDataSource : NSObjectProtocol
```

## Topics

### Instance Methods

- [comboBox(_:completedString:)](appkit/nscomboboxdatasource/combobox(_:completedstring:).md)
- [comboBox(_:indexOfItemWithStringValue:)](appkit/nscomboboxdatasource/combobox(_:indexofitemwithstringvalue:).md)
- [comboBox(_:objectValueForItemAt:)](appkit/nscomboboxdatasource/combobox(_:objectvalueforitemat:).md)
- [numberOfItems(in:)](appkit/nscomboboxdatasource/numberofitems(in:).md)

## Relationships

### Inherits From

- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Management

- [NSComboBoxDelegate](appkit/nscomboboxdelegate.md)