[Windows & iOS] CollectionView2 ItemSizingStrategy="MeasureFirstItem" Fails to Apply Correct Sizing #13
Description
Description
When using a CollectionView with ItemSizingStrategy="MeasureFirstItem" in a .NET MAUI application, the behavior does not work as expected on Windows and CV2. The items are not sized correctly based on the first item. However, the actual behavior resembles MeasureAllItems, where each item's size is calculated individually, leading to inconsistent layouts.
Steps to Reproduce
- Run the attached sample ItemSizingStrategySample.zip
- Select the picker MeasureFirstItem and observe the behavior
Expected Behavior: The CollectionView should size all items based on the size of the first item in the collection.
Actual Behavior: The CollectionView sizes items as if ItemSizingStrategy="MeasureAllItems" is applied, where each item's size is calculated individually instead of using the size of the first item, resulting in inconsistent item sizes.
Link to public reproduction project repository
No response
Version with bug
10.0.0-preview.5
Is this a regression from previous behavior?
Not sure, did not test other versions, No, this is something new
Last version that worked well
Unknown/Other
Affected platforms
iOS, macOS
Affected platform versions
No response
Did you find any workaround?
No response