ScrollView does not work inside VerticalStackLayout about maui HOT 2 CLOSED

This is the designed behavior. VerticalStackLayout doesn't size children, and will take up all the space needed by its children, even going off screen as it does here. Hence there's no constraint. The inner VStack child measures all the labels and says "I need X height" and the ScrollView says to the parent Layout "how much room do I have, should I scroll my children that need X?" and the parent is a VStack that says "I'll give you all the space you need" and so...no scroll. Grid on the other hand (or other column as you have here) gets its height constraint from the parent Grid which got it from the Window, and thus the ScrollView gets a constraint from which to determine it needs to scroll its children.

Grid > VStack > ScrollView > VStack is inefficient and won't get you the results you want.

Grid > Grid > ScrollView > VStack is still inefficient, but get's the desired result. Do something like that. Optimize by collapsing the Grids into one. I realize this is just a sample.

https://learn.microsoft.com/en-us/dotnet/maui/migration/layouts?view=net-maui-8.0#stacklayout

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Got it, thanks a lot for explanation. Now I know how VerticalStackLayout thinking :)

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