Deserializing complex object using Json.NET

Question

I need to deserialize the this json returned from grogle maps api:

{
    \"destination_addresses\": [
        \"Via Medaglie D\'Oro, 10, 47121 Forlì FC, Ital         


        

Answer 1

Using dynamic :

dynamic json = JsonConvert.DeserializeObject(jsonResponse);

var rowCount = json.rows.Count;
Func<dynamic, int> getElementCount = r => r.elements.Count;
var maxElements = Enumerable.Max(json.rows, getElementCount);

var matrix = new int?[rowCount, maxElements];
for(int i = 0; i < rowCount; i++)
{
    var elements = json.rows[i].elements;
    for(int j = 0; j < elements.Count; j++)
    {
        var element = elements[j];
        matrix[i, j] = element.distance.value;
    }
}

Answer 2

You should deserialize to classes that match your data. You can generate these classes at http://json2csharp.com/.

// use like
var rootObj = JsonConvert.DeserializeObject<RootObject>(jsonResponse);
foreach (var row in rootObj.rows)
{
    foreach (var element in row.elements)
    {
        Console.WriteLine(element.distance.text);
    }
}

// you might want to change the property names to .Net conventions
// use [JsonProperty] to let the serializer know the JSON names where needed
public class Distance
{
    public string text { get; set; }
    public int value { get; set; }
}

public class Duration
{
    public string text { get; set; }
    public int value { get; set; }
}

public class Element
{
    public Distance distance { get; set; }
    public Duration duration { get; set; }
    public string status { get; set; }
}

public class Row
{
    public List<Element> elements { get; set; }
}

public class RootObject
{
    public List<string> destination_addresses { get; set; }
    public List<string> origin_addresses { get; set; }
    public List<Row> rows { get; set; }
    public string status { get; set; }
}

Answer 3

I believe the issue is with the cast to 'DataSet' based on a similar question I found searching Stack Overflow.

Try this as I believe it would work (you may need to use 'rows' instead of 'Elements', but I believe the approach of using a JObject will resolve the primary issue of the 'additional text'.

 JObject json = JsonConvert.DeserializeObject<JObject>(jsonResponse);
 foreach (Dictionary<string, object> item in data["Elements"])
 {
    foreach (string val in item.Values) {
        Console.WriteLine(val);
    }
  }