CODEWITHSUNDEEP
c#jsonjavascriptserializer
noobDotNet
noobDotNet

Reputation: 35

Need help parsing JSON

The following code to parse JSON is not working. What am I doing wrong?

string jsonText =
    @"{
        ""John Doe"":{
            ""email"":""[email protected]"",
            ""ph_no"":""4081231234"",
            ""address"":{                    
                ""house_no"":""10"",
                ""street"":""Macgregor Drive"",
                ""zip"":""12345""
            }
        },
        ""Jane Doe"":{
            ""email"":""[email protected]"",
            ""ph_no"":""4081231111"",
            ""address"":{
                ""house_no"":""56"",
                ""street"":""Scott Street"",
                ""zip"":""12355""
            }
        }
    }"

public class Address {
    public string house_no { get; set; }
    public string street { get; set; }
    public string zip { get; set; }
}

public class Contact {
    public string email { get; set; }
    public string ph_no { get; set; }
    public Address address { get; set; }
}

public class ContactList
{
    public List<Contact> Contacts { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        ContactList cl = serializer.Deserialize<ContactList>(jsonText);
    }
}

Thanks

Upvotes: 0

Views: 236

Answers (3)

orip
orip

Reputation: 75427

The JSON text isn't a list of Contacts, it's an object mapping a name to a contact, so a List<Contact> is inappropriate.

The following JSON text matches List<Contact>:

var contactListJson = @"{
    ""email"":""[email protected]"",
    ""ph_no"":""4081231234"",
    ""address"":{                    
        ""house_no"":""10"",
        ""street"":""Macgregor Drive"",
        ""zip"":""12345""
},
{
    ""email"":""[email protected]"",
    ""ph_no"":""4081231111"",
    ""address"":{
        ""house_no"":""56"",
        ""street"":""Scott Street"",
        ""zip"":""12355""
}";

so the following JSON would match ContactList:

var jsonText = string.Format(@"{ ""Contacts"" : ""{0}"" }", contactListJson);

EDIT: To deserialize the existing JSON format, try deserializing into Dictionary<string, Contact>.

Upvotes: 2

John Lewis
John Lewis

Reputation: 722

http://www.json.org/

"A value can be a string in double quotes, or a number, or true or false or null, or an object or an array. These structures can be nested."

""John Doe"" is not a valid string. If you want to keep the quotes then you would use this:

"\"John Doe\""

but I suspect you just want:

"John Doe"

Upvotes: -1

smartcaveman
smartcaveman

Reputation: 42246

Check out JSON.NET. It is well documented and highly extensible.

Upvotes: 1

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