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According to Apple doc https://developer.apple.com/library/mac/documentation/cocoa/reference/CoreDataFramework/Classes/NSFetchRequest_Class/NSFetchRequest.html#//apple_ref/doc/uid/TP30001170-BAJHFCAC it should be possible to set this property to null.
I checked this issue and noticed that NSFetchRequest.SortDescriptors property setter throw "argument null exception" when we set this property to null.
Refer screen cast: http://www.screencast.com/t/S0zkaAuAUSL
XS 4.2.3(build 59)
X iOS : 18.104.22.168
Yes, documentation is clear - I'll remove the extraneous check.
Fixed in master / 8bc9dd525438f68a2ac52bd2a164d6e94ab8c64c
QA: unit tests added in the same revision
I have checked this issue on following builds:
Xamarin Studio : 4.2.4 (build 32)
Xamarin.iOS : 22.214.171.124 (Trial Edition)
Release ID: 402040032
Git revision: a160c35dac9ab9fd32eeadaa171216316d5a5133
Build date: 2014-03-12 13:55:08-04
Xamarin addins: a779416ceabd54981ce812771a4061c942e8b872
I observe when I set the "SortDescriptor" property of "NSFetchRequest class" it is not throwing the null reference exception and we are able to assign null to the "SortDescriptor" property. I have checked the declaration of "SortDescriptors" property and it is allowing null value. Now it is according to Apple's documentation "
This issue is working fine. Hence, I am closing this issue.
Please let me know if I have to check anything else.