Bug 53520 - Grid height calculated incorrectly if a text is wrapped inside a grid cell
Summary: Grid height calculated incorrectly if a text is wrapped inside a grid cell
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.3.3
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Paul DiPietro [MSFT]
Depends on:
Reported: 2017-03-20 11:45 UTC by Milan Laslop
Modified: 2017-03-21 13:17 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

screenshot from minimal example (20.54 KB, image/png)
2017-03-20 11:45 UTC, Milan Laslop

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Description Milan Laslop 2017-03-20 11:45:34 UTC
Created attachment 20453 [details]
screenshot from minimal example

Can be reproduced with Xamarin Forms or
Can be reproduced in UWP.

See screenshot in attachments: grid.png

Each grid has green background to see what its height actually is.
Example A: Incorrect, Wrapped part of the text is not added to the grid height
Example B: Correct, there was only one change: first column width changed from Auto to 100
Example C: Incorrect, first column width changed from Auto to 10 (so, there is a difference between 100 and 10)

The incorrectly calculated height of course causes:
- incorrect positions of the elements placed after the grid
- incorrect calculations of the scrolled area height (if we want to scroll the grid, we cannot scroll to the very bottom)

An interesting thing is that the 3 examples differ in the definition of first column, not the second (the wrapped text is in the second column).

Minimal example: https://github.com/milan11/xamarin_forms_grid_test

Potentially similar bug: https://bugzilla.xamarin.com/show_bug.cgi?id=21844
Comment 1 Paul DiPietro [MSFT] 2017-03-20 20:26:34 UTC
Can you please test against the nightly (https://blog.xamarin.com/try-the-latest-in-xamarin-forms-with-nightly-builds/) and confirm that this is working for you? It appears to be fixed after updating.
Comment 2 Milan Laslop 2017-03-21 07:03:41 UTC
I tried it with nightly and it works correctly (both the minimal example and our original application). Thank you.