CODEWITHSUNDEEP
c#json
Dominick Piganell
Dominick Piganell

Reputation: 714

Deserializing JSON List object

I receive this JSON object from a web request:

"\"[{\\\"EventId\\\":25,\\\"StartDate\\\":\\\"2014-06-12T12:00:00\\\",\\\"EndDate\\\":\\\"2014-06-17T12:00:00\\\",\\\"Title\\\":\\\"Test\\\",\\\"Description\\\":\\\"desc\\\",\\\"Teaser\\\":\\\"teaser\\\",\\\"PhoneNumber\\\":null,\\\"Email\\\":null,\\\"AddressOne\\\":null,\\\"AddressTwo\\\":null,\\\"City\\\":null,\\\"State\\\":null,\\\"ZipCode\\\":null,\\\"Country\\\":null,\\\"RegistrationUrl\\\":null,\\\"CreatedBy\\\":\\\"c216cd34-6a3d-4f38-950b-ea3383a30a64\\\"},{\\\"EventId\\\":25,\\\"StartDate\\\":\\\"2014-06-13T12:00:00\\\",\\\"EndDate\\\":\\\"2014-06-18T12:00:00\\\",\\\"Title\\\":\\\"Test\\\",\\\"Description\\\":\\\"desc\\\",\\\"Teaser\\\":\\\"teaser\\\",\\\"PhoneNumber\\\":null,\\\"Email\\\":null,\\\"AddressOne\\\":null,\\\"AddressTwo\\\":null,\\\"City\\\":null,\\\"State\\\":null,\\\"ZipCode\\\":null,\\\"Country\\\":null,\\\"RegistrationUrl\\\":null,\\\"CreatedBy\\\":\\\"c216cd34-6a3d-4f38-950b-ea3383a30a64\\\"},{\\\"EventId\\\":25,\\\"StartDate\\\":\\\"2014-06-14T12:00:00\\\",\\\"EndDate\\\":\\\"2014-06-19T12:00:00\\\",\\\"Title\\\":\\\"Test\\\",\\\"Description\\\":\\\"desc\\\",\\\"Teaser\\\":\\\"teaser\\\",\\\"PhoneNumber\\\":null,\\\"Email\\\":null,\\\"AddressOne\\\":null,\\\"AddressTwo\\\":null,\\\"City\\\":null,\\\"State\\\":null,\\\"ZipCode\\\":null,\\\"Country\\\":null,\\\"RegistrationUrl\\\":null,\\\"CreatedBy\\\":\\\"c216cd34-6a3d-4f38-950b-ea3383a30a64\\\"},{\\\"EventId\\\":25,\\\"StartDate\\\":\\\"2014-06-15T12:00:00\\\",\\\"EndDate\\\":\\\"2014-06-20T12:00:00\\\",\\\"Title\\\":\\\"Test\\\",\\\"Description\\\":\\\"desc\\\",\\\"Teaser\\\":\\\"teaser\\\",\\\"PhoneNumber\\\":null,\\\"Email\\\":null,\\\"AddressOne\\\":null,\\\"AddressTwo\\\":null,\\\"City\\\":null,\\\"State\\\":null,\\\"ZipCode\\\":null,\\\"Country\\\":null,\\\"RegistrationUrl\\\":null,\\\"CreatedBy\\\":\\\"c216cd34-6a3d-4f38-950b-ea3383a30a64\\\"},{\\\"EventId\\\":25,\\\"StartDate\\\":\\\"2014-06-16T12:00:00\\\",\\\"EndDate\\\":\\\"2014-06-21T12:00:00\\\",\\\"Title\\\":\\\"Test\\\",\\\"Description\\\":\\\"desc\\\",\\\"Teaser\\\":\\\"teaser\\\",\\\"PhoneNumber\\\":null,\\\"Email\\\":null,\\\"AddressOne\\\":null,\\\"AddressTwo\\\":null,\\\"City\\\":null,\\\"State\\\":null,\\\"ZipCode\\\":null,\\\"Country\\\":null,\\\"RegistrationUrl\\\":null,\\\"CreatedBy\\\":\\\"c216cd34-6a3d-4f38-950b-ea3383a30a64\\\"}]\""

I have an object that matches this type called EventView and deserialize it into an object like so:

string result = "";
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
      StreamReader reader = new StreamReader(response.GetResponseStream());

      result = reader.ReadToEnd();
}
JavaScriptSerializer jss = new JavaScriptSerializer();
JsonEventView ev = jss.Deserialize<JsonEventView>(result);



public class JsonEventView
{
    public List<EventView> results { get; set; }
}

However, I get an error every time I attempt to deserialize it. 

Cannot convert object of type 'System.String' to type 'EventManagerService.JsonEventView'

Upvotes: 0

Views: 84

Answers (1)

Jeremy Cook
Jeremy Cook

Reputation: 22063

Web API handles the serialization for you. So you do not need to manually serialize the object to JSON.

return Request.CreateResponse(HttpStatusCode.OK, Active);

Of course, Web API being able to return JSON hinges on Content Negotiation and your app being properly configured, such that there is a formatter that can provide the output a consumer requests (JSON in this case).

Upvotes: 1

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