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# fileWrappers

The file wrappers contained by a directory file wrapper.

```
var fileWrappers: [String : FileWrapper]? { get }
```

## Discussion

The dictionary contains entries whose values are the file wrappers and whose keys are the unique filenames that have been assigned to each one. See [Accessing File Wrapper Identities](https://developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/FileWrappers/FileWrappers.html#//apple_ref/doc/uid/TP40010672-CH13-SW1) in [File System Programming Guide](https://developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40010672) for more information about the file-wrapper list structure.

This property may contain `nil` if the user modifies the directory after you call [`read(from:options:)`](/documentation/Foundation/FileWrapper/read(from:options:)) or [`init(url:options:)`](/documentation/Foundation/FileWrapper/init(url:options:)-70161) but before [`FileWrapper`](/documentation/Foundation/FileWrapper) has read the contents of the directory.  Use the [`immediate`](/documentation/Foundation/FileWrapper/ReadingOptions/immediate) reading option to reduce the likelihood of that problem.

### Special Considerations

This property raises `NSInternalInconsistencyException` if the file wrapper object is not a directory file wrapper.

## See Also

[`filename`](/documentation/Foundation/FileWrapper/filename)

The filename of the file wrapper object


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