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Created attachment 9950 [details]
Project to reproduce the problem
When using DataContractSerializer, methods in the model which is being Serialized/Deserialized can be marked with attributes so that they are called at particular points in the process. These are OnDeserializing, OnDeserialized, OnSerializing and OnSerialized.
When using the DataContractSerializer in Xamarin.Android, it calls the model methods attributed as OnDeserializing and OnDeserialized, but it fails to call the OnSerializing and OnSerialized methods. All four methods are called when identical code is run in .Net, but in Xamarin.Android, only the Deserialize methods are called.
I also tested with DataContractJsonSerializer, and that worked fine for all 4 methods, so I think this issue is unique to DataContractSerializer.
I've attached a simple project to reproduce the problem.
I have checked this issue and able to reproduce it. To reproduce this issue I have followed the steps and instruction provide din bug description.
Steps to reproduced:
1. Open attached test Sample in VS.
2. Use "DataContractSerializer"
3. Build and deploy the application.
4. Observed that you will fined in application output:
5. Now test it with "DataContractJsonSerializer"
6. Build and run the application.
7. Observed the application output:
Build output: https://gist.github.com/Rajneesh360Logica/9b1a995fc18d94babdd1
Microsoft Visual Studio Professional 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Installed Version: Professional
LightSwitch for Visual Studio 2013 06177-004-0446016-02381
Microsoft LightSwitch for Visual Studio 2013
Team Explorer for Visual Studio 2013 06177-004-0446016-02381
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Microsoft Visual Basic 2013
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Microsoft Visual C# 2013
Visual C++ 2013 06177-004-0446016-02381
Microsoft Visual C++ 2013
Visual F# 2013 06177-004-0446016-02381
Microsoft Visual F# 2013
Visual Studio 2013 Code Analysis Spell Checker 06177-004-0446016-02381
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Windows Phone SDK 8.0 - ENU 06177-004-0446016-02381
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package 1.0
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 12.4.51016.0
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Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
Microsoft Advertising SDK for Windows Phone
Microsoft Advertising SDK for Windows Phone
Microsoft Azure Mobile Services Tools 1.3
Microsoft Azure Mobile Services Tools
NuGet Package Manager 2.8.50926.663
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.
Office Developer Tools for Visual Studio 2013 ENU 12.0.30626
Microsoft Office Developer Tools for Visual Studio 2013 ENU
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Provides file classification services using PowerShell
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Microsoft SQL Server Data Tools
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This package contains the necessary Visual Studio integration components for Workflow Manager.
Xamarin 3.11.666.0 (ebae43a)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 126.96.36.199 (5f55a9ef61c11b6ce0890bc91e4c71b1b92be214)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.Forms Intellisense 1.0
Provides intellisense for Xamarin.Forms in the XML editor.
Xamarin.iOS 188.8.131.52 (67b390d0d1bd741582cf7b7fd3ffea08583a3f83)
Visual Studio extension to enable development for Xamarin.iOS.
Xamarin.iOS Unified Migration 1.0
Automated migration for Xamarin iOS Classic projects to Unified
Early preview of Xamarin Test Cloud integration