Retrieve (Get) property value from JSON string using C# and VB.Net in ASP.Net

Hi nauna,

Refer below sample code.

C#

protected void Page_Load(object sender, EventArgs e)
{
    System.IO.StreamReader stRead = new System.IO.StreamReader(Server.MapPath("json.json"));
    RootObject root = Newtonsoft.Json.JsonConvert.DeserializeObject<RootObject>(stRead.ReadToEnd());
    Response.Write(string.Format("Order Id : <b>{0}</b>", root.order.id));
}

public class RootObject
{
    public string id { get; set; }
    public Order order { get; set; }
    public Tender tender { get; set; }
    public decimal amount { get; set; }
    public decimal taxAmount { get; set; }
    public decimal cashbackAmount { get; set; }
    public Employee employee { get; set; }
    public string createdTime { get; set; }
    public string clientCreatedTime { get; set; }
    public string modifiedTime { get; set; }
    public bool offline { get; set; }
    public string result { get; set; }
    public string externalReferenceId { get; set; }
}

public class Order
{
    public string id { get; set; }
}

public class Tender
{
    public string href { get; set; }
    public string id { get; set; }
}

public class Employee
{
    public string id { get; set; }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim stRead As IO.StreamReader = New IO.StreamReader(Server.MapPath("json.json"))
    Dim root As RootObject = Newtonsoft.Json.JsonConvert.DeserializeObject(Of RootObject)(stRead.ReadToEnd())
    Response.Write(String.Format("Order Id : <b>{0}</b>", root.order.id))
End Sub

Public Class RootObject
    Public Property id As String
    Public Property order As Order
    Public Property tender As Tender
    Public Property amount As Decimal
    Public Property taxAmount As Decimal
    Public Property cashbackAmount As Decimal
    Public Property employee As Employee
    Public Property createdTime As String
    Public Property clientCreatedTime As String
    Public Property modifiedTime As String
    Public Property offline As Boolean
    Public Property result As String
    Public Property externalReferenceId As String
End Class

Public Class Order
    Public Property id As String
End Class

Public Class Tender
    Public Property href As String
    Public Property id As String
End Class

Public Class Employee
    Public Property id As String
End Class

Json

{
  "id": "9NNCNGRZ29XA6",
  "order": {
    "id": "TYF28RDCYBVXP"
  },
  "tender": {
    "href": "https://sandbox.dev.abc.com/v3/merchants/G9G/tenders/DGWC",
    "id": "DGW"
  },
  "amount": 351,
  "taxAmount": 0,
  "cashbackAmount": 0,
  "employee": {
    "id": "JCC77XT5H2PCM"
  },
  "createdTime": 1602824125000,
  "clientCreatedTime": 1602824125000,
  "modifiedTime": 1602824125000,
  "offline": false,
  "result": "SUCCESS",
  "externalReferenceId": "dc05"
}

Output

Order Id : TYF28RDCYBVXP