Populate ComboBox from JSON Object

Question

Hello,

I have below Json

[
{
"customerid": 1,
"name": "ABS",
"email": "true",
"reference": "2016-03-21T10:44:32+03:00",
"status": 0,
"dateupdated": "2017-12-07T04:56:05.583"
},
{
"customerid": 2,
"name": "BMS",
"email": "true",
"reference": "2016-03-13T19:17:54+03:00",
"status": 0,
"dateupdated": "2017-12-07T04:56:05.757"
},
{
"customerid": 3,
"name": "XYA",
"email": "true",
"reference": "2016-03-13T19:17:54+03:00",
"status": 0,
"dateupdated": "2017-12-07T04:56:05.757"
}
]

In my windows form I create class API.cs

class API
{

}

public class RootObject
{
public int customerid { get; set; }
public string name { get; set; }
public string email { get; set; }
public DateTime reference { get; set; }
public int status { get; set; }
public DateTime dateupdated { get; set; }
}

I need to populate combo box customer_cb with "name"

I use DataContractJsonSerializer

WebClient client = new WebClient();
string json = client.DownloadString(url);
using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
DataContractJsonSerializer deserializer = new DataContractJsonSerializer(typeof(RootObject));
RootObject obj = (RootObject)deserializer.ReadObject(ms);

// Assign data to combo box
foreach(var name in obj.name)
{
ComboboxItem item = new ComboboxItem();
item.Text = name.ToString();
customer_cb.Items.Add(item);
}
}

When I run I get error

"Object Reference not set to an instance of an object"

Please help

Answer 1

ítem.Text = obj.name;