Bug 2925 - Cannot use DataContactJsonSerializer to deserialise into ObservableCollection.
Summary: Cannot use DataContactJsonSerializer to deserialise into ObservableCollection.
Status: RESOLVED FIXED
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 5.0
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2012-01-16 18:26 UTC by Jeff
Modified: 2014-02-25 15:13 UTC (History)
3 users (show)

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


Attachments
Shows how the serialization works with a List but fails with ObservableCollection. (1.46 MB, application/x-zip-compressed)
2012-01-16 18:26 UTC, Jeff
Details


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Status:
RESOLVED FIXED

Description Jeff 2012-01-16 18:26:50 UTC
Created attachment 1210 [details]
Shows how the serialization works with a List but fails with ObservableCollection.

You can use DataContractJsonDeserializer to deserialise a string into a List<T> but you can't deserialise into ObservableCollection<T>. 

Error is:
System.InvalidCastException. Unable to cast object of type 'System.Collections.Generic.List'1[BugObservableCollection.SearchParam]' to type 'System.Collections.ObjectModel.ObservableCollection'1[BugObservableCollection.SearchParam]' 

I use the same deserialization into an ObservableCollection in a Silverlight app where it works fine. 

Test app attached.
Comment 1 Steve Gordon 2012-04-01 18:13:33 UTC
I encountered this as well when porting a Windows Phone app to the iPhone.

It would be great to get this addressed so that special iPhone-specific code isn't required.
Comment 2 Sebastien Pouliot 2014-02-25 15:13:32 UTC
This works with 7.0.7 - but it likely worked for quite some time (perhaps back to the mono 3.0 move in XI 6.4)