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# indexOfItem(withObjectValue:)

Searches the combo box’s internal item list for the given object and returns the matching index number.

```
func indexOfItem(withObjectValue object: Any) -> Int
```

## Parameters

`object`

The object for which to return the index.

## Return Value

The lowest index whose corresponding value is equal to `anObject`. Objects are considered equal if they have the same id or if `isEqual:` returns <doc://com.apple.documentation/documentation/Swift/true>. If none of the objects in the combo box’s internal item list is equal to `anObject`, [`indexOfItem(withObjectValue:)`](/documentation/AppKit/NSComboBoxCell/indexOfItem(withObjectValue:)) returns `NSNotFound`.

## Discussion

This method logs a warning if [`usesDataSource`](/documentation/AppKit/NSComboBoxCell/usesDataSource) is <doc://com.apple.documentation/documentation/Swift/true>.

## See Also

[`selectItem(withObjectValue:)`](/documentation/AppKit/NSComboBoxCell/selectItem(withObjectValue:))

Selects the first pop-up list item that corresponds to the specified object.


---

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