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POWindows Azure: Serializing an object that is inherited by TableServiceEntity
 

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  1. POWindows Azure: Serializing an object that is inherited by TableServiceEntity
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    <p>I want to have this class serialized, so i can send it as the body of a httpresponsemessage:</p> <pre><code> [DataContract] public class Subscription : TableServiceEntity { [DataMember] public string SubscriptionId { get; set; } [DataMember] public bool IsAdmin { get; set; } } </code></pre> <p>The way i want to use it:</p> <pre><code> IList&lt;Subscription&gt; subs = ... ; return new HttpResponseMessage&lt;IList&lt;Subscription&gt;&gt;(subs); </code></pre> <p>It compiles, but when i run this part i get an error saying the IList can't be serialized and i have to add it to the known type collection. I'm guessing the members of TableServiceEntity are not serializable and that's why i can't serialize the whole list in all, but i don't know how to resolve this issue.</p> <p>Any ideas?</p> <p>Sincerely,</p> <p>Zoli</p> <p><strong>MODIFICATION</strong></p> <p>I added a new class just as it was said in the first comment and it looks like this:</p> <pre><code> [DataServiceEntity] [DataContract] [KnownType(typeof(Subscription))] public abstract class SerializableTableServiceEntity { [DataMember] public string PartitionKey { get; set; } [DataMember] public string RowKey { get; set; } [DataMember] public DateTime Timestamp { get; set; } } [DataContract] public class Subscription : SerializableTableServiceEntity { [DataMember] public string SubscriptionId { get; set; } [DataMember] public bool IsAdmin { get; set; } } </code></pre> <p>I still get the error saying to</p> <blockquote> <pre><code>add type to known type collection and to use the serviceknowntypeattribute before the operations </code></pre> </blockquote> <p>the only operation i use is this:</p> <pre><code>public class DBModelServiceContext : TableServiceContext { public DBModelServiceContext(string baseAddress, StorageCredentials credentials) : base(baseAddress, credentials) { } public IList&lt;Subscription&gt; Subscriptions { get { return this.CreateQuery&lt;Subscription&gt;("Subscriptions").ToArray(); } } } </code></pre> <p><strong>MODIFICATION 2</strong></p> <p>MY interface looks like this:</p> <pre><code> [OperationContract] [ServiceKnownType(typeof(IList&lt;Subscription&gt;))] [WebGet(UriTemplate = "subscription/{value}", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare)] HttpResponseMessage&lt;IList&lt;Subscription&gt;&gt; GetSubscription(string value); </code></pre> <p>the implementation behind is:</p> <pre><code> public HttpResponseMessage&lt;IList&lt;Subscription&gt;&gt; GetSubscription(string value) { var account = CloudStorageAccount.FromConfigurationSetting("DataConnectionString"); var context = new DBModelServiceContext(account.TableEndpoint.ToString(), account.Credentials); IList&lt;Subscription&gt; subs = context.Subscriptions; return new HttpResponseMessage&lt;IList&lt;Subscription&gt;&gt;(subs);} </code></pre>
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    1. USZoltan Varadi
    1. USZoltan Varadi
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      1. VTUpMod
    1. COPlease add everything you tried to add [to the answer](http://stackoverflow.com/suggested-edits/264857) here on your question. Thanks.
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      1. POWindows Azure: Serializing an object that is inherited by TableServiceEntity
      1. USShadow Wizard
 

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