Bug 21985 - Exception when calling Remove or IndexAt for ObservableCollection<Enum> on device (iPhone)
Summary: Exception when calling Remove or IndexAt for ObservableCollection<Enum> on de...
Alias: None
Product: iOS
Classification: Xamarin
Component: General ()
Version: master
Hardware: Macintosh Mac OS
: Normal normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2014-08-10 19:57 UTC by Joseph Narai
Modified: 2014-09-08 10:04 UTC (History)
5 users (show)

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

Copy of test project showing the issue (8.92 KB, application/zip)
2014-08-10 19:57 UTC, Joseph Narai

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Description Joseph Narai 2014-08-10 19:57:39 UTC
Created attachment 7650 [details]
Copy of test project showing the issue

Description of Problem:

I create a new ObservableCollection<Enum> ()

I can add to the collection, but when I try and call Remove() or IndexOf() with appropriate values, then I get:

Unable to cast object of type 'TestProj.TestProjViewController+SettingsSectionsEnum' to type 'System.Int32'.

Steps to reproduce the problem:
1. Run up test project, deploying to device (iPhone) - NOTE, it works as expected on simulator.
2. Exception will be throw at line 63 m_PutRequests.Remove (SettingsSectionsEnum.EmergencyEmail);

Actual Results:
Throws exception

Expected Results:
Correctly removes item from collection

How often does this happen? 

Additional Information:
I have attached a simple test project which displays the problem.
Comment 1 Udham Singh 2014-08-11 08:22:22 UTC
I have checked this issue and observed the same behaviour mentioned in bug description. To reproduce this issue I have followed the steps mentioned in bug description.

Screencast : http://www.screencast.com/t/oebktr9xAcu

Error Log : https://gist.github.com/Udham1/846243354a92f6e24879
Application Output : https://gist.github.com/Udham1/b761a215816e06e17f14
iOS Device Log : https://gist.github.com/Udham1/a0ecc6e42163fe1d6fcd
Ide Log : https://gist.github.com/Udham1/af41e735ffc67caf06c8

Environment Info : 

=== Xamarin Studio ===

Version 5.2 (build 386)
Installation UUID: 952292e8-1484-4c56-b664-6ff701bef591
	Mono 3.6.0 ((no/f540f8a)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 306000039

=== Apple Developer Tools ===

Xcode 5.1.1 (5085)
Build 5B1008

=== Xamarin.iOS ===

Version: (Business Edition)
Hash: 606f31a
Build date: 2014-08-01 15:27:48-0400

=== Build Information ===

Release ID: 502000386
Git revision: e6a54dee5376e6e7a2d9982695b060fddc09e65d
Build date: 2014-08-04 14:03:28-04
Xamarin addins: 2b5a5c26ac2ee74c6e91a8d24ef44d0ca9cb74d0

=== Operating System ===

Mac OS X 10.9.3
Darwin Xamarin76s-Mac-mini.local 13.2.0 Darwin Kernel Version 13.2.0
    Thu Apr 17 23:03:13 PDT 2014
    root:xnu-2422.100.13~1/RELEASE_X86_64 x86_64
Comment 2 Rolf Bjarne Kvinge [MSFT] 2014-09-08 10:04:49 UTC
This works fine with Xamarin.iOS