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POPartially deserializing a JSON string with multiple roots
 

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  1. POPartially deserializing a JSON string with multiple roots
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    <p>I am coding a C# version 4 application that consumes REST web services. Those web services are written with ASP.NET MVC RESTful web service approach. Half of those web service methods return JSON strings with <b>multiple roots</b> (please see the sample JSON data below). However, for a specific JSON response (please see one below), I would like partially deserialize a <b>multiple-root</b> JSON response string into an Device object (e.g. belonging to Device class) which I am interested in instead of all of the data response. </p> <p>I know how to use C# .NET library or JSON.net codes to deserialize a JSON string that has only one root. But I am not sure how to do with multiple-root JSON data. Please advice. Thank you. </p> <p>For instance, with the following JSON response, I want to retrieve data for “device” object (instantiated from Device class), and <b>ignore</b> “version_info” and “SKU_info” data.</p> <p>The following JSON response has 3 roots: "version_info", "SKU_info", and "device":</p> <pre><code>{ “version_info” : { “version” : “1.0”, “owner_id” : 237}, “SKU_info” : {“id” : 1928399, “active”: true}, “device” : { “id”: 7732, “name” : “desktop computer ”, “parent_device_id”: 2982, “sub_devices”: [ {“id”: 7733, “name”: “fan”, “quantity” : 1 }, {“id”: 7734, “name”: “memory chip”, “quantity” : 4 }, {“id”: 7735, “name”: “CPU”, “quantity” : 1 }, {“id”: 7736, “name”: “hard disk”, “quantity” : 2 }, ], “user_id” : 864 } } </code></pre> <p>And my csutom “Device” and "SubDevice" classes:</p> <pre><code>public class Device { public long Id; public string Name; public long ParentDeviceId; public List&lt;SubDevice&gt; Subdevices; public int UserId; } public class SubDevice { public long Id; public string Name; public int Quantity; } </code></pre>
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