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[Bug][iOS] If CollectionView in other Tab gets changed before it's displayed, it stays invisible #7700
Labels
a/collectionview
blocker
Issue blocks next stable release. Prioritize fixing and reviewing this issue.
e/2 🕑
2
i/high
Completely doesn't work, crashes, or is unusably slow, has no obvious workaround; occurs less often
in-progress
This issue has an associated pull request that may resolve it!
p/iOS 🍎
t/bug 🐛
Projects
Milestone
Comments
Fails to render on iOS 13, full-out crashes on 12 and lower. |
2 tasks
CliffAgius
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to CliffAgius/Xamarin.Forms
that referenced
this issue
Dec 6, 2019
…ab (xamarin#7940) * Prevent crash when adding item to source of CollectionView that's never been displayed; fixes xamarin#7700 * Fix renaming error in UI test * Add test and fix for adding groups offscreen * Fix rebase error * Remove flags * Add instructions * Better instructions
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Labels
a/collectionview
blocker
Issue blocks next stable release. Prioritize fixing and reviewing this issue.
e/2 🕑
2
i/high
Completely doesn't work, crashes, or is unusably slow, has no obvious workaround; occurs less often
in-progress
This issue has an associated pull request that may resolve it!
p/iOS 🍎
t/bug 🐛
Description
As the title says, if you have a CollectionView in some other Tab (in a TabbedPage, of course), and change it (add or remove something) before displaying the page, the CollectionView doesn't get rendered when the page is displayed.
Steps to Reproduce
On the repro project:
Expected Behavior
The CollectionView appears with the modifications made on the first tab.
Actual Behavior
The CollectionView gets modified but it doesn't get rendered when the tab is displayed.
Basic Information
Screenshots
Second tab if changed before being displayed:
Second tab if displayed before being changed:
Reproduction Link
CVIssue.zip
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