Access JSON data in Windows Forms Application

Question

I have following on click event :

private void button1_Click(object sender, EventArgs e)
{
    string usrname = textBox1.Text;
    string pass = textBox2.Text;
    Service1 ser = new Service1();
    string jay = ser.UsernamePass(usrname);

    dynamic string_json = Newtonsoft.Json.JsonConvert.DeserializeObject(jay);

    var password = string_json.login.Password.Value;

    if (pass == password)
    {
        h.Show();
    }
    MessageBox.Show("Wrong Password");
}

jay has Following value :

"{\"login\":[{\"Password\":\"admin123\"}]}"

string_json has following value :

{
    "login": [
    {
        "Password": "admin123"
    }]
}

At following line : var password = string_json.login.Password.Value;

It throws me following exception :

"'Newtonsoft.Json.Linq.JArray' does not contain a definition for 'Password'"

Can anyone help me with it that how i access data? Even it would be useful if you tell me another way to access data.

Elvedin Hamzagic · Accepted Answer · 2014-03-27 12:35:14Z

1

As I can see, login is array, so try:

var password = string_json.login[0].Password.Value;

answered Mar 27, 2014 at 12:35

Elvedin Hamzagic

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5 Comments

Rocky Balboa Over a year ago

And if i want to count the entries in login then how would i do it?

Elvedin Hamzagic Over a year ago

Try property Count: james.newtonking.com

Rocky Balboa Over a year ago

Can u give a example same way u gave above? plz

Rocky Balboa Over a year ago

can u state me an example plz? @Elvedin Hamzagic

Elvedin Hamzagic Over a year ago

Do you want to get the Count or to enumerate through JSON? It you want count type string_json.login.Count for array, or string_json.login[0].Count for object inside array.

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