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POHow can you deserialize JSON data in C# (using DataContractJsonSerializer) without knowing all property names?
 

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  1. POHow can you deserialize JSON data in C# (using DataContractJsonSerializer) without knowing all property names?
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    <p>I have been using the DataContractJsonSerializer to convert data returned from the HubSpot API into strongly-typed objects, but I'm having some trouble with the user profile object.</p> <p>In this example, I am able to get the Id and IsContact properties, but can't figure out how to get the list of properties since I don't know in advance what those can be. I would like to make Properties a Dictionary but I'm not sure how to do this. I don't care about the versions for each property, just the value.</p> <p>This is a simplified example of the data that is returned by the API:</p> <pre><code>{ "vid": 72361, "is-contact": true, "properties": { "city": { "value": "Burlington", "versions": [ { "value": "Burlington", "source-type": "SALESFORCE", "source-id": "continuous", "source-label": null, "timestamp": 1384319976006, "selected": false } ] }, "country": { "value": "US", "versions": [ { "value": "US", "source-type": "SALESFORCE", "source-id": "continuous", "source-label": null, "timestamp": 1384319976006, "selected": false } ] }, "company": { "value": "Bridgeline Digital", "versions": [ { "value": "Bridgeline Digital", "source-type": "SALESFORCE", "source-id": "continuous", "source-label": null, "timestamp": 1384319976006, "selected": false } ] } } } </code></pre> <p>This is the object I am trying to deserialize to:</p> <pre><code>[DataContract] public class HubSpotUserProfile { [DataMember(Name = "vid")] public int Id { get; set; } [DataMember(Name = "is-contact")] public bool IsContact { get; set; } [DataMember(Name = "redirect")] public string RedirectUrl { get; set; } [DataMember(Name = "properties")] public Dictionary&lt;string, HubSpotUserProfileProperty&gt; Properties { get; set; } } [DataContract] public class HubSpotUserProfileProperty { [DataMember(Name = "value")] public string Value { get; set; } } </code></pre> <p>I call this method to perform the deserialization:</p> <pre><code> public static T Post&lt;T&gt;(string url, string postData) where T : class { string json = Post(url, postData); if (!String.IsNullOrWhiteSpace(json)) { using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(json))) { DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T)); return (T)serializer.ReadObject(stream); } } return null; } </code></pre> <p>When I do this, no error is thrown, but Properties always has a Count of 0. Any idea on how I can accomplish this goal?</p>
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    1. USJKasper11
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    1. COWhat would you do with the extra properties? Since you don't know what they are, it may be difficult to write code to use them.
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      1. POHow can you deserialize JSON data in C# (using DataContractJsonSerializer) without knowing all property names?
      1. USJohn Saunders
 

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