Incorrect height of CollectionView when ItemsSource is empty about maui HOT 6 OPEN

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from maui.

I can repro this issue at Android platform on the latest 17.11.0 Preview 2.0(8.0.7&8.0.60).

from maui.

I don't believe this is a bug. I think this was a breaking change with StackLayout introduced with MAUIs introduction with net6.0.

StackLayout does not automatically expand elements inside it. That includes CollectionView. If you want this to work, you would change your outer StackLayout to a Grid (With something like Auto, *, Auto for the Row Layout).

@PureWeen What do you think?

from maui.

I don't believe this is a bug. I think this was a breaking change with StackLayout introduced with MAUIs introduction with net6.0.

StackLayout does not automatically expand elements inside it. That includes CollectionView. If you want this to work, you would change your outer StackLayout to a Grid (With something like Auto, *, Auto for the Row Layout).

@PureWeen What do you think?

You are correct. I do not expect StackLayout to expand its elements, but it does. When I place a CollectionView inside a StackLayout, I expect it to shrink to its content size. If there are no items in the CollectionView, I expect it to have a height of 0, but instead, it expands to a giant size.
In general, I don't think the height of anything should be over 6 million in any circumstances.

from maui.

yea, ultimately I'd say @drasticactions is right, but, it seems like in this scenario the dimensions of the CV should be zero since there's not an emptyitemtemplate

from maui.

Also, if you add EmptyView it doesn't help either. You see EmptyView in that case, yet the height remains over millions. That was how I discovered the issue in the first place, I expected CollectionView to display EmptyView fitting to its size, not rocketing the height into the sky.

from maui.