JSON Cannot Deserialize JSON array into type

Question

I keep having issues trying to get this JSON to deserialize, even after trying multiple approaches.

Here is the JSON that is returned by the web service:

[
   {
      "data":[
         {
            "osis":"Matthew 5:5-8",
            "content":"^5\u00a0\u201cBlessed are the ^(A)meek, for they ^(B)shall inherit the earth.
 ^6\u00a0\u201cBlessed are those who hunger and ^(C)thirst ^(D)for righteousness, for they shall be satisfied.
 ^7\u00a0\u201cBlessed are ^(E)the merciful, for they shall receive mercy.
 ^8\u00a0\u201cBlessed are ^(F)the pure in heart, for ^(G)they shall see God.",
            "footnotes":[

            ],
            "crossrefs":[
               "Matthew 5:5 : Ps. 37:11
",
               "Matthew 5:5 : Ps. 37:11
",
               "Matthew 5:6 : Ps. 42:2; Isa. 55:1, 2; John 7:37
",
               "Matthew 5:6 : 2 Tim. 2:22; [ch. 6:33]
",
               "Matthew 5:7 : ch. 18:33; 25:34-36; Prov. 19:17; Luke 6:36; 2 Tim. 1:16; Heb. 6:10
",
               "Matthew 5:8 : Ps. 24:4; 2 Tim. 2:22; [1 Pet. 1:22]
",
               "Matthew 5:8 : Heb. 12:14; 1 John 3:2, 3; Rev. 22:4; [1 Cor. 13:12]
"
            ]
         },
         {
            "osis":" Mark 3:9",
            "content":"^9\u00a0And he told his disciples to ^(A)have a boat ready for him because of the crowd, lest they ^(B)crush him,",
            "footnotes":[

            ],
            "crossrefs":[
               "Mark 3:9 : ch. 6:32, 45 (Gk.); 8:10 (Gk.)
",
               "Mark 3:9 : ch. 5:24, 31
"
            ]
         }
      ]
   }
]

Very ugly I know. Unfortunately it is someone else's web service, so there isn't much I can do. I've been messing around with the C# model class and can't quite seem to get it to work.

Calling Method:

    2013-02-08 20:08:32.768 VersesiOS[36931:c07] Unhandled managed exception: Cannot deserialize JSON array into type 'Verses.Core.BibleGatewayVerses'. (Newtonsoft.Json.JsonSerializationException)
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureArrayContract (System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract) [0x00000] in :0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.Object existingValue, System.String reference) [0x00000] in :0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.Object existingValue) [0x00000] in :0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueNonProperty (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract) [0x00000] in :0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in :0 
  at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in :0 
  at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in :0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject (System.String value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x00000] in :0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[BibleGatewayVerses] (System.String value, Newtonsoft.Json.JsonSerializerSettings settings) [0x00000] in :0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[BibleGatewayVerses] (System.String value) [0x00000] in :0 
  at Verses.Core.BibleGateway+Response.GetVerseText (System.String requestUrl) [0x00047] in /Users/pierceboggan/Desktop/Verses/Verses.Core/Verses.Core/Web Services/BibleGateway.cs:111 
  at Verses.Core.BibleGateway.GetVerseText (System.String searchKeywords) [0x00012] in /Users/pierceboggan/Desktop/Verses/Verses.Core/Verses.Core/Web Services/BibleGateway.cs:43

Model Class:

[JsonObject(MemberSerialization.OptIn)]
public class BibleGatewayVerse
{
    [JsonProperty("osis")]
    public string Reference { get; set; }
    [JsonProperty("content")]
    public string Content { get; set; }
    [JsonProperty("footnotes")]
    public List Footnotes { get; set; }
    [JsonProperty("crossrefs")]
    public List CrossReferences { get; set; }
}

[JsonObject(MemberSerialization.OptIn)]
public class BibleGatewayVerses
{
    [JsonProperty("data")]
    public List Verses;
}

I've used tools such as json2csharp.com and they generate the same thing. I've also toyed around with using arrays instead of List, but to no avail. Additionally, I've also tried replacing the Footnotes List with the type object (as recommended by json2sharp).

Any help would be greatly appreciated.

Connie Hilarides · Accepted Answer

Your Json data is wrapped in an array, so you need to deserialize to an array of your type

JsonConvert.DeserializeObject(jsonData);

Hope this helps

JSON Cannot Deserialize JSON array into type

Answers (2)

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