---
title: invalidatedDecorationIndexPaths
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uicollectionviewlayoutinvalidationcontext/invalidateddecorationindexpaths
---

# invalidatedDecorationIndexPaths

A dictionary that identifies the decoration views that were invalidated.

## Declaration

```swift
var invalidatedDecorationIndexPaths: [String : [IndexPath]]? { get }
```

## Discussion

Discussion The keys in this dictionary are the element kind strings of the invalid decoration views. The value for each key is an array of NSIndexPath objects indicating which specific decoration views have layout changes.

## See Also

### Invalidating Specific Items

- [invalidateItems(at:)](uikit/uicollectionviewlayoutinvalidationcontext/invalidateitems(at:).md)
- [invalidateSupplementaryElements(ofKind:at:)](uikit/uicollectionviewlayoutinvalidationcontext/invalidatesupplementaryelements(ofkind:at:).md)
- [invalidateDecorationElements(ofKind:at:)](uikit/uicollectionviewlayoutinvalidationcontext/invalidatedecorationelements(ofkind:at:).md)
- [invalidatedItemIndexPaths](uikit/uicollectionviewlayoutinvalidationcontext/invalidateditemindexpaths.md)
- [invalidatedSupplementaryIndexPaths](uikit/uicollectionviewlayoutinvalidationcontext/invalidatedsupplementaryindexpaths.md)