Bug 20672 - ListChangedEventArgs.PropertyDescriptor is always null in BindingList.ListChanged event args
Summary: ListChangedEventArgs.PropertyDescriptor is always null in BindingList.ListCha...
Alias: None
Product: Class Libraries
Classification: Mono
Component: System ()
Version: 3.4.0
Hardware: All All
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2014-06-18 05:20 UTC by Prashant Cholachagudda
Modified: 2014-08-07 02:21 UTC (History)
6 users (show)

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

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Description Prashant Cholachagudda 2014-06-18 05:20:29 UTC
It seems like a bug on the PropertyDescriptor value in the ListChangedEventArgs when using a BindingList.
ListChangedEventArgs.PropertyDescriptor is always null in BindingList.ListChanged event args

Here's the unit tests that pass on .Net 4.5 profiles but fails on Mono
Comment 2 Alexis Christoforides 2014-06-18 22:24:19 UTC

This has been fixed in master (commit aeab5b59021f4a712d54357c8bbeaa6fac12dc37). 

I'll also commit an amended version of your unit test if that's okay, Prashant.
Comment 3 Stefan de Vogelaere 2014-06-19 14:11:26 UTC
When can we have this fix in Monotouch? It's urgent..,
Comment 6 Saurabh 2014-08-06 10:12:27 UTC
Could you provide me Test project so that I can check this issue at my end?
Comment 7 PJ 2014-08-06 10:21:01 UTC
Alexis, where were the tests added after comment 2? We might be running them on Android already on wrench.

Saurabh is seeing this bug listed in the Android 4.16.0 release notes so he's trying to verify the fix for Android.

Saurabh, you can add the tests in comment 0 to an Android unit test project and run them yourself to verify.
Comment 8 Saurabh 2014-08-06 11:33:34 UTC
I have check this issue with code mentioned in comment 0 in Android Unit Test Project. I am successfully able to Run test on device with X.Android 4.16.0-3 and Mono 3.8.0. I have also tried to reproduce this with X.Android 4.14.0 and Mono 3.6.0, Here also I am successfully able to Run Test on device. I am not sure what changes happened?
Comment 9 Alexis Christoforides 2014-08-07 02:21:07 UTC

The test is in mono/master commit 5bdff7c7e99511d42445bd15d570789100c263af.  The test fixture can be quickly run with "make check FIXTURE=System.ComponentModel.BindingListTest" within mcs/class/System.