Bug 9748 - UIImageView.set_HighlightedImage should accept null values
Summary: UIImageView.set_HighlightedImage should accept null values
Alias: None
Product: iOS
Classification: Xamarin
Component: General ()
Version: 6.0.x
Hardware: PC Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2013-01-23 18:39 UTC by Eric Fikus
Modified: 2013-01-23 20:29 UTC (History)
3 users (show)

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

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Description Eric Fikus 2013-01-23 18:39:36 UTC
UIImageView.HighlightedImage = null throws an NRE, so there is no way to unset this value.

In objc highlightedImage = nil behaves as expected.
Comment 1 Sebastien Pouliot 2013-01-23 20:15:23 UTC
The [NullAllowed] attribute is present. OTOH when a binding is missing a [NullAllowed] it should be throwing an ANE (ArgumentNullException) not a NRE (NullReferenceException). 

Which version of MonoTouch are you using ?
Comment 2 Eric Fikus 2013-01-23 20:19:35 UTC
Oh, sorry, it is an ANE.  MT version 6.0.8.

[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Argument cannot be null.
Parameter name: value
  at MonoTouch.UIKit.UIImageView.set_HighlightedImage (MonoTouch.UIKit.UIImage value) [0x0000b] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIImageView.g.cs:239
Comment 3 Sebastien Pouliot 2013-01-23 20:29:03 UTC
It's fixed but it's not in 6.0.8 (or in 6.0.9) but it will be in 6.2 (and it's part of the 6.1 betas).

p.s. I can give you a workaround (manual binding) if this blocks you.