How to Extract Data from a JSON Array Using Json.net?

Use Json.net to parse JSON

Access specific JSON data

Consider the following JSON format:

{
    "displayFieldName": "OBJECT_NAME", 
    "fieldAliases": {
        "OBJECT_NAME": "OBJECT_NAME", 
        "OBJECT_TYPE": "OBJECT_TYPE"
    }, 
    "positionType": "point", 
    "reference": {
        "id": 1111
    }, 
    "objects": [ {
        "attributes": {
            "OBJECT_NAME": "test name", 
            "OBJECT_TYPE": "test type"
        }, 
        "position": {
            "x": 5, 
            "y": 7
        }
    } ]
}

To extract only the data in the "objects" array, you can use Json.net to deserialize JSON into .NET objects:

Use Json.net

Foo foo = JsonConvert.DeserializeObject<Foo>(json);

Define the following classes to match JSON structures:

public class NameTypePair
{
    public string OBJECT_NAME { get; set; }
    public string OBJECT_TYPE { get; set; }
}

public class Position
{
    public int x { get; set; }
    public int y { get; set; }
}

public class SubObject
{
    public NameTypePair attributes { get; set; }
    public Position position { get; set; }
}

public class Foo
{
    public List<SubObject> objects { get; set; }
}

After deserialization, you can access the data in the "objects" array using the foo.objects attribute.

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