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[Bug] OnPropertyChanged sometimes does not update UI in ListView, only after scroll or another activity #6841

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Legenda374 opened this issue Jul 10, 2019 · 4 comments
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[Bug] OnPropertyChanged sometimes does not update UI in ListView, only after scroll or another activity #6841

Legenda374 opened this issue Jul 10, 2019 · 4 comments
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a/listview Problems with the ListView/TableView e/3 🕒 3 i/regression p/Android t/bug 🐛

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@Legenda374
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Description

i have a problem, when i work with list items, listview does not redraw them if they area of visibility, reflected only after I've scrolled the element out of view and back, or I've tap on item, it appeared after the updated to Xamarin v4, when i used Xamarin v3 everything was good

Ask on Stackoverflow

https://stackoverflow.com/questions/56969200

Another problem

#6830

Steps to Reproduce

  1. Populate a listview items with multiple columns, labels and images
  2. Change View cells
  3. Scroll down a little ways and the corruption issue appears

Expected Behavior

Labels should display correctly with correct information

Actual Behavior

Labels don't display correct information and are cropped so they don't show the entire contents

Basic Information

  • Version with issue: 4.1.0.555618
  • Last known good version: 3.6.0.539721
  • IDE: VS2017
  • Platform Target Frameworks:
    • Android: 9.0

Screenshots

Video: https://youtu.be/u-a1cWKywKI

Reproduction Link

https://youtu.be/u-a1cWKywKI
@Legenda374 Legenda374 added s/unverified New report that has yet to be verified t/bug 🐛 labels Jul 10, 2019
@Legenda374 Legenda374 changed the title [Bug] [Bug] OnPropertyChanged sometimes does not update UI in ListView, only after scroll or another activity Jul 10, 2019
@samhouts samhouts added a/listview Problems with the ListView/TableView i/regression labels Jul 11, 2019
@samhouts
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This is another one likely to be resolved by #6390. Can you please attach a small project that demonstrates this issue? Thanks!

@samhouts samhouts added p/Android s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. s/needs-repro ❔ This reported issue doesn't include a sample project reproducing the issue. Please provide one. labels Jul 11, 2019
@Legenda374
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I added a project, you need to press the button several times and to scroll listview. It repeats.
https://github.com/Legenda374/XamarinBug.git

@Legenda374
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Please reply to me so that you can repeat the bug

@samhouts samhouts removed s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. s/needs-repro ❔ This reported issue doesn't include a sample project reproducing the issue. Please provide one. labels Jul 11, 2019
@paymicro paymicro mentioned this issue Jul 11, 2019
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@samhouts samhouts added e/3 🕒 3 and removed s/unverified New report that has yet to be verified labels Jul 11, 2019
@samhouts
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closed by #6390

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@samhouts @Legenda374 @paymicro