Bug 7770 - InvalidProgramException when using GenericObject<T> to derive from NSView
Summary: InvalidProgramException when using GenericObject<T> to derive from NSView
Alias: None
Product: Xamarin.Mac
Classification: Desktop
Component: Library (Xamarin.Mac.dll) ()
Version: 1.10.0
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: 2.0.x
Assignee: Chris Hamons
Depends on:
Reported: 2012-10-10 07:35 UTC by Chris Hardy [MSFT]
Modified: 2015-03-02 12:23 UTC (History)
3 users (show)

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

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Description Chris Hardy [MSFT] 2012-10-10 07:35:16 UTC
If you run the attached project in its current state you will get an InvalidProgramException. If you change the GenericObject<T> class to derive from nothing (instead of NSView), you will see that everything runs as expected.
Comment 3 Chris Hamons 2015-02-17 14:34:51 UTC
Apologies on the long delay in response. This bug was misfiled and thus was not looked at.

This issue has been fixed if you move to the Unified API of Xamarin.Mac in 1.12 (Alpha/Beta right now).
Comment 4 Rajneesh Kumar 2015-03-02 12:23:09 UTC
I have checked this issue with the following builds:

=== Xamarin Studio ===
Version 5.8 (build 1043)
Installation UUID: 011d70a5-dede-428b-ab04-ef451c2e539d
Mono 4.0.0 ((detached/2634099)
GTK+ 2.24.23 (Raleigh theme)
Package version: 400000017
 Apple Developer ToolsXcode 6.1 (6604)
Build 6A1052d
Xamarin.Mac Version: (Business Edition)
=== Build Information ===
Release ID: 508001043
Git revision: eeba4b77cc5ab021f9c5e2bddf16272e1f6b75d9
Build date: 2015-03-02 06:49:10-05
Xamarin addins: a58814e6e6034bf1169e758b92ead093a3f40404
Operating SystemMac OS X 10.9.5
Darwin MacMini.local 13.4.0 Darwin Kernel Version 13.4.0
Sun Aug 17 19:50:11 PDT 2014
root:xnu-2422.115.4~1/RELEASE_X86_64 x86_64

I download the attached test case and the convert it to the Unified API, now I am able to build and run it successfully without any error/exception. Here is the screencast for the same: http://www.screencast.com/t/RHOtn3GZsKw

This issue has been fixed, hence I am closing this issue.