C# data contract without root object

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I have json output like this and i cannot find the root object.

[

{
"Id": 954,
"FilmId": "ST00000026",
"Title": "The Current War",
"ScreenId": 2,
"PreShowStartTime": "2018-01-25T11:00:00",
},
{
"Id": 955,
"FilmId": "ST00000026",
"Title": "The Current War",
"ScreenId": 2,
"PreShowStartTime": "2018-01-25T13:10:00",
}
]

So try to convert json to c# through DataContract using this

[DataContract]

public class RewardRequest1 : JsonDataContractObject
{
[DataMember(Name = "Id")]
public string Id { get; set; }

[DataMember(Name = "FilmId")]
public string FilmId { get; set; }
}

It returns Null value and i cannot find the root object.

What I have tried:

I tried arry but i cannot get the list. Please help me to fix this.

Posted 24-Jan-18 2:57am

Member 11415004

Updated 24-Jan-18 6:01am

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Comments

F-ES Sitecore 24-Jan-18 9:08am

There is no root object in that JSON, it is an array of two objects so it's IEnumerable<rewardrequest1> in .net terms.

Karthik_Mahalingam 24-Jan-18 10:04am

can you post the code.

Member 11415004 28-Jan-18 13:20pm

Hi here is my deserialize method:

[DataContract]
public class JsonDataContractObject
{
public string ToJson()
{
DataContractJsonSerializer ser = new DataContractJsonSerializer(this.GetType());
Stream s = new MemoryStream();
ser.WriteObject(s, this);
s.Position = 0;
StreamReader sr = new StreamReader(s);
return sr.ReadToEnd();
}
}

And i get data from web api using http client. If i have root object then this "DataContractJsonSerializer" method working fine but my json response dont have root object so idea. Please help.

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David_Wimbley · Answer 1 · 2018-01-24T06:01:00

Your JSON has no root object, you've just create an array of 2 objects is all.

If you were to change your JSON to

JavaScript

{  
   "Items":[  
      {  
         "Id":954,
         "FilmId":"ST00000026",
         "Title":"The Current War",
         "ScreenId":2,
         "PreShowStartTime":"2018-01-25T11:00:00"
      },
      {  
         "Id":955,
         "FilmId":"ST00000026",
         "Title":"The Current War",
         "ScreenId":2,
         "PreShowStartTime":"2018-01-25T13:10:00"
      }
   ]
}

Then your root object would be "Items" and your class structure would look like

C#

public class Item
{
    public int Id { get; set; }
    public string FilmId { get; set; }
    public string Title { get; set; }
    public int ScreenId { get; set; }
    public DateTime PreShowStartTime { get; set; }
}

public class RootObject
{
    public List<Item> Items { get; set; }
}

Where you could then, using json.net library, do something like

C#

var mydata = JsonConvert.DeserializeObject<RootObject>(myjsonstring>();

But until you alter your JSON that you've provided, you have no root object.