How to assign Json array into model in asp.net ?

Hi All,

I having issue while i consume api into my application. when I try to assign it to model .its give me the error. i will show details about it .

string JsonProductResult = ObjApi.Api_ProductListByCategoryId(BarerTokenVal, Branch, T1);

var SObject = JsonConvert.DeserializeObject(JsonProductResult);

IList myDeserializedClass = JsonConvert.DeserializeObject>(JsonProductResult);

JsonProductResult : (it return the following json array result )

"[\r\n {\r\n \"InventoryID\": 2,\r\n \"BarCode\": \"001\",\r\n \"InventoryName\": \"?????(??)\",\r\n \"Description\": \"Shun De Double Layered Pudding (Original Taste)\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 3.6000,\r\n \"ImagePath\": \"WebImage/cham1/001.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 3,\r\n \"BarCode\": \"002\",\r\n \"InventoryName\": \"?????\",\r\n \"Description\": \"Chrysanthemum Double Layered Milk Pudding\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 3.8000,\r\n \"ImagePath\": \"WebImage/cham1/002.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 4,\r\n \"BarCode\": \"003\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Red Bean\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 3.8000,\r\n \"ImagePath\": \"WebImage/cham1/003.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 5,\r\n \"BarCode\": \"004\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Coconut\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 3.8000,\r\n \"ImagePath\": \"WebImage/cham1/004.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 6,\r\n \"BarCode\": \"005\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Lotus Seed\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 3.8000,\r\n \"ImagePath\": \"WebImage/cham1/005.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 7,\r\n \"BarCode\": \"006\",\r\n \"InventoryName\": \"???+????\",\r\n \"Description\": \"Double Layered Milk Pudding + Red Bean Lotus Seed\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 4.0000,\r\n \"ImagePath\": \"WebImage/cham1/006.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 8,\r\n \"BarCode\": \"007\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Mango\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 4.5000,\r\n \"ImagePath\": \"WebImage/cham1/007.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 9,\r\n \"BarCode\": \"008\",\r\n \"InventoryName\": \"???+???\",\r\n \"Description\": \"Double Layered Milk Pudding + Honeydew\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 4.5000,\r\n \"ImagePath\": \"WebImage/cham1/008.jpg\"\r\n },\r\n {\r\n \"InventoryID\": 10,\r\n \"BarCode\": \"009\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Almond\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 4.8000,\r\n \"ImagePath\": null\r\n },\r\n {\r\n \"InventoryID\": 11,\r\n \"BarCode\": \"010\",\r\n \"InventoryName\": \"???+??\",\r\n \"Description\": \"Double Layered Milk Pudding + Walnut\",\r\n \"Notes\": \"\",\r\n \"CategoryID\": 2,\r\n \"CategoryName\": \"?????\",\r\n \"Price\": 4.9000,\r\n \"ImagePath\": null\r\n }\r\n]"

Sobject:

[

{

"InventoryID": 2,

"BarCode": "001",

"InventoryName": "?????(??)",

"Description": "Shun De Double Layered Pudding (Original Taste)",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 3.6000,

"ImagePath": "WebImage/cham1/001.jpg"

{

"InventoryID": 3,

"BarCode": "002",

"InventoryName": "?????",

"Description": "Chrysanthemum Double Layered Milk Pudding",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 3.8000,

"ImagePath": "WebImage/cham1/002.jpg"

{

"InventoryID": 4,

"BarCode": "003",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Red Bean",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 3.8000,

"ImagePath": "WebImage/cham1/003.jpg"

{

"InventoryID": 5,

"BarCode": "004",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Coconut",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 3.8000,

"ImagePath": "WebImage/cham1/004.jpg"

{

"InventoryID": 6,

"BarCode": "005",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Lotus Seed",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 3.8000,

"ImagePath": "WebImage/cham1/005.jpg"

{

"InventoryID": 7,

"BarCode": "006",

"InventoryName": "???+????",

"Description": "Double Layered Milk Pudding + Red Bean Lotus Seed",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 4.0000,

"ImagePath": "WebImage/cham1/006.jpg"

{

"InventoryID": 8,

"BarCode": "007",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Mango",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 4.5000,

"ImagePath": "WebImage/cham1/007.jpg"

{

"InventoryID": 9,

"BarCode": "008",

"InventoryName": "???+???",

"Description": "Double Layered Milk Pudding + Honeydew",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 4.5000,

"ImagePath": "WebImage/cham1/008.jpg"

{

"InventoryID": 10,

"BarCode": "009",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Almond",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 4.8000,

"ImagePath": null

{

"InventoryID": 11,

"BarCode": "010",

"InventoryName": "???+??",

"Description": "Double Layered Milk Pudding + Walnut",

"Notes": "",

"CategoryID": 2,

"CategoryName": "?????",

"Price": 4.9000,

"ImagePath": null

}

]

when i reach this following line , i getting converting errror .

IList myDeserializedClass = JsonConvert.DeserializeObject>(JsonProductResult);

Name Value Type

InnerException {"Could not cast or convert from System.String to System.Collections.Generic.IList`1[Sun.Model.Root]."} System.Exception {System.ArgumentException}

this is my Model :

public class ProductList
{
public int InventoryID { get; set; }
public string BarCode { get; set; }
public string InventoryName { get; set; }
public string Description { get; set; }
public string Notes { get; set; }
public int CategoryID { get; set; }
public string CategoryName { get; set; }
public decimal Price { get; set; }
public string ImagePath { get; set; }
}
public class Root
{
public IList ProductList { get; set; }
}

If anyone knows give me with a suitable solution for this .

Thanks in advace

Karthik . K

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ashutosh Gupta5y ago
Accepted answer
var myDeserializedClass = JsonConvert.DeserializeObject>(JsonProductResult);
0
Mageshwaran R5y ago
Hey Karthik,
Try this code:
  List productList = new List();
   ProductList Product = null;

List roots=GetJsonData()
foreach (Root root in roots)
            {

                Product = new Product();
                JavaScriptSerializer serializer = new JavaScriptSerializer();
                Product  = serializer.Deserialize(root.ProductList);

                productList.Add(Product);

            }
0