Bug 3579 - Can't set CAShapeLayer Color and Path properties to null
Summary: Can't set CAShapeLayer Color and Path properties to null
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 5.2
Hardware: Other Other
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-02-22 03:39 UTC by Jamie
Modified: 2012-02-29 12:38 UTC (History)
4 users (show)

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

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Description Jamie 2012-02-22 03:39:04 UTC
When I try to set a CAShapeLayers FillColor property to null I get a null ref exception.  According to Apples documentation I should be able to do this.  

The same issue occurs when setting the Path property of CAShapeLayer.
I suspect this is an issue with a lot of the CoreGraphics namespace as a lot of the property setters use value.Handle without a null check on value.

A workaround is to do the following:

ShapeLayer.FillColor = new CGColor(IntPtr.Zero)
ShapeLayer.Path = new CGPath(IntPtr.Zero)
Comment 1 Rolf Bjarne Kvinge [MSFT] 2012-02-22 07:25:09 UTC
Fixed in 8029651 (master). This fix will be included in the first 5.3 release.
Comment 2 Rolf Bjarne Kvinge [MSFT] 2012-02-27 12:33:20 UTC
It will also be included in 5.2.6.
Comment 3 Eric Beisecker 2012-02-29 12:38:24 UTC
Verified Fixed in 5.2.6