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From Filip Maj <>
Subject [WP7] Passing more complex objects over the bridge
Date Tue, 19 Jun 2012 22:51:12 GMT
... Currently won't work. Basically the DataContractJsonSerializer .NET
object that we employ to parse JSON on the native side can't parse nested
objects in JSON. The DataContract stuff is supposed to make it easy to
cast the various JSON values to .NET types. In the case of a nested object
with dynamic keys, that you can't model ahead of time, we tried using a
Dictionary type on the native side. This won't work [1].

This came up when deserializing FileTransfer upload options because they
have a nested "params" object that house dynamic &key=value URL parameters
to send with the HTTP request. Not sure if it happens in other spots.

Anywho, one potential solution is to explicitly convert nested objects
such as these to a dumber structure. In the SO thread [1] they suggest
having an array of {key:"known1",value:"foo"} pairs replace the objects.
The native side could parse that.

Another option is to use the library [2]. MIT license. 300-ish kb

The stock System.Json namespace that is available in .NET and has better
capabilities is not available on Windows Phone.

Any other solutions/ideas/comments/thoughts?


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