Bind data with list<classname> property

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C#6.0

i need to create an api in which final output would be look like that:-

{
	"authdata": {
		"version": "1.0",
		"Type": "APIResponse",
		"PDateTime": "9/14/2022 6:18:34 AM",
		"status": "SUCCESS"
	},
	"data": [
		{
			"orderID": "",
			"Orderdetails ": [
				{
					"orderNumber": "291323150",
					"ID": "0001",
					"orderDate": "9/2/2022 12:00:00 AM",
				}
			],
			"Partdetails ": [
				{
					"key": "pincode",
					"value": "34598702"
				},
				{
					"key": "deliveryStatus",
					"value": "OptedOut"
				},
				{
					"key": "deliveryDate",
					"value": "2022-09-02T00:00:00"
				},
				{
					"key": "Status",
					"value": "successfully dispatch"
				}
			]
		}
	]
}

to get such json response i create this modal:-

public class myResponse
 {
     public Authdata authdata { get; set; }
     public List<orderdata> data { get; set; }
 }


 public class Authdata
 {
     public string version { get; set; }
     public string Type { get; set; }
     public string PDateTime { get; set; }
     public string status { get; set; }
 }

 public class orderdata
 {
     public string orderID { get; set; }

     [JsonProperty("Orderdetails ")]
     public List<Orderdetail> Orderdetails { get; set; }

     [JsonProperty("Partdetails ")]
     public List<Partdetail> Partdetails { get; set; }
 }

 public class Orderdetail
 {
     public string orderNumber { get; set; }
     public string ID { get; set; }
     public string orderDate { get; set; }
 }

 public class Partdetail
 {
     public string key { get; set; }
     public object value { get; set; }
 }

now i have a function in which i passed all the data list and bind assemble it as per my output response

private myResponse outputResponse(List<od> odData, List<pd> pdData,string oid)
 {
     return new myResponse
     {
         authdata = new Authdata
         {
             version = "1.0",
             Type = "APIResponse",
             PDateTime = "9/14/2022 6:18:34 AM",
             status ="SUCCESS"
         },

         data = new List<orderdata>
         {
             orderID = oid,
             Orderdetails = odData
             Partdetails = pdData
         }
     };
 }

It's give me an error that orderdata does not contain a defination of orderID,Orderdetails,Partdetails.

can any one sugguest me the solution to implement this.

What I have tried:

i changed my modal code from this:

public class myResponse
   {
       public Authdata authdata { get; set; }
       public List<orderdata> data { get; set; }
   }

to this

public class myResponse
   {
       public Authdata authdata { get; set; }
       public orderdata data { get; set; }
   }

it's working but not getting expected result.