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# noteHeightOfRows(withIndexesChanged:)

Informs the table view that the rows specified in `indexSet` have changed height.

```
func noteHeightOfRows(withIndexesChanged indexSet: IndexSet)
```

## Parameters

`indexSet`

Index set of rows that have changed their height.

## Discussion

If the delegate implements [`tableView(_:heightOfRow:)`](/documentation/AppKit/NSTableViewDelegate/tableView(_:heightOfRow:)) this method immediately retiles the table view using the row heights the delegate provides.

For [`NSView`](/documentation/AppKit/NSView)-based tables, this method will animate. To turn off the animation, create an [`NSAnimationContext`](/documentation/AppKit/NSAnimationContext) grouping and set the [`duration`](/documentation/AppKit/NSAnimationContext/duration) to 0. Then call this method and end the grouping.

For [`NSCell`](/documentation/AppKit/NSCell)-based tables, this method normally doesn’t animate. However, it will animate if you call it inside a [`beginUpdates()`](/documentation/AppKit/NSTableView/beginUpdates())/[`endUpdates()`](/documentation/AppKit/NSTableView/endUpdates()) block.

---

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