CODEWITHSUNDEEP
c#jsonjson.net
Jishan
Jishan

Reputation: 1684

JSON Parsing Value Not Showing

So I am using JSON.net to parse my JSON, but I get wrong output for a List of List Values object. Here's my JSON.net code:

var reader = new StreamReader(GenerateStreamFromString(decodedString));
            var rootObject = JsonConvert.DeserializeObject<RootObject>(reader.ReadToEnd());

txtOut.Text = rootObject.Results.output1.value.ColumnNames[0].ToString() + " : " + 
rootObject.Results.output1.value.Values[0].ToString();

Here are the JSON Classes:

public class Value
{
    public List<string> ColumnNames { get; set; }
    public List<string> ColumnTypes { get; set; }
    public List<List<string>> Values { get; set; }
}

public class Output1
{
    public string type { get; set; }
    public Value value { get; set; }
}

public class Results
{
    public Output1 output1 { get; set; }
}

public class RootObject
{
    public Results Results { get; set; }
}

The output should be:

Scored Probabilities for Class "BackPocket" : 0.37687685364

While I get:

Scored Probabilities for Class "BackPocket" : System.Collections.Generic.List`1[System.String]

Where have I done wrong?

Thanks.

P.S. Here is a sample JSON:

{"Results":{"output1":{"type":"table","value":{"ColumnNames":["Scored Probabilities for Class \"BackPocket\"","Scored Probabilities for Class \"Ear\"","Scored Probabilities for Class \"Handbag\"","Scored Probabilities for Class \"SidePocket\"","Scored Labels"],"ColumnTypes":["Double","Double","Double","Double","String"],"Values":[["0.0249993801116943","0.999469399452209","0.00426889630034566","0.00104729761369526","Ear"]]}}}}

Upvotes: 1

Views: 133

Answers (3)

L.B
L.B

Reputation: 116098

Because element 0 is a list, You can use string.Join to get a printable string..

txtOut.Text = rootObject.Results.output1.value.ColumnNames[0].ToString() + " : " +
                string.Join(";",rootObject.Results.output1.value.Values[0]);

OUTPUT would be:

Scored Probabilities for Class "BackPocket" : 0.0249993801116943;0.999469399452209;0.00426889630034566;0.00104729761369526;Ear

Upvotes: 1

David L
David L

Reputation: 33815

It is a list of lists. You're currently only indexing one level deep. You need to index two levels deep. 

txtOut.Text = rootObject.Results.output1.value.ColumnNames[0].ToString() + " : " + 
rootObject.Results.output1.value.Values[0][0].ToString();

Upvotes: 1

Shannon Holsinger
Shannon Holsinger

Reputation: 2341

Try this as your Json Class/Classes 

[DataContract]    
public class Value
{
[DataMember]
public List<string> ColumnNames { get; set; }
[DataMember]
public List<string> ColumnTypes { get; set; }
[DataMember]
public List<List<string>> Values { get; set; }
}
[DataContract]
public class Output1
{
[DataMember]
public string type { get; set; }
[DataMember]
public Value value { get; set; }
}
[DataContract]
public class Results
{
[DataMember]
public Output1 output1 { get; set; }
}
[DataContract]
public class RootObject
{
[DataMember]
public Results Results { get; set; }
}

Upvotes: 0

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