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# NSFileProviderSearchEnumerator

A protocol that defines methods for providing search results and canceling searches.

```
protocol NSFileProviderSearchEnumerator : NSObjectProtocol
```

## Overview

Implement this protocol by implementing the [`enumerateSearchResults(for:startingAt:)`](/documentation/FileProvider/NSFileProviderSearchEnumerator/enumerateSearchResults(for:startingAt:)) method to perform your search and deliver pages of results to the [`NSFileProviderSearchEnumerationObserver`](/documentation/FileProvider/NSFileProviderSearchEnumerationObserver) that you receive as the first parameter.

## Topics

### Providing search results

[`enumerateSearchResults(for:startingAt:)`](/documentation/FileProvider/NSFileProviderSearchEnumerator/enumerateSearchResults(for:startingAt:))

Enumerates search results starting from the specified page, in response to a call from the framework.

[`NSFileProviderSearchEnumerationObserver`](/documentation/FileProvider/NSFileProviderSearchEnumerationObserver)

A protocol that defines a type that receives enumerations of search results from your extension.

[`NSFileProviderPage`](/documentation/FileProvider/NSFileProviderPage)

A synchronization point that represents the next batch of items to be returned by an enumerator.

### Canceling a search

[`invalidate()`](/documentation/FileProvider/NSFileProviderSearchEnumerator/invalidate())

Cancels a currently-running enumeration, in respone to a call from the framework.


---

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