Bug 10889 - controller's will get GC'd, even if their view is added to the view hierarchy
Summary: controller's will get GC'd, even if their view is added to the view hierarchy
Alias: None
Product: MonoMac
Classification: Desktop
Component: Bindings ()
Version: unspecified
Hardware: Macintosh Mac OS
: --- critical
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2013-03-04 16:33 UTC by bryan costanich
Modified: 2014-03-20 17:09 UTC (History)
2 users (show)

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

solution file (20.26 KB, application/zip)
2013-03-04 16:33 UTC, bryan costanich

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Description bryan costanich 2013-03-04 16:33:08 UTC
Created attachment 3534 [details]
solution file

If you create a new controller in a method (rather than at class level), and then add it's view to the a view that is alive, eventually, that controller will get GC'd, causing your application to crash.

for instance. consider the following code inside a window:
public override void AwakeFromNib ()
	base.AwakeFromNib ();
	OutlineViewController outlineViewController;
	outlineViewController = new OutlineViewController ( this.Window.ContentView.Bounds);
	this.Window.ContentView.AddSubview (outlineViewController.View);

after running this for a bit, Xam.mac will clean up the reference to OutlineViewController, even though the controller's view has been added to Window.ContentView via AddSubview.

To repro, run attached application, expand some nodes in the outline view, wait a bit, and then try expanding/collapsing some more.
Comment 1 Chris Hamons 2014-03-20 17:09:39 UTC
This appears to have been fixed with our 1.6 release. I have 1.6.27 and am unable to reproduce. Please try it out and let me know if you can still reproduce.