Dfyjkt

Good day,

I'm trying to retrieve the data from my Web Service(.asmx),
But in the controller part I'm having this exception

"System.AggregateException - One or more errors occured"

Any ideas on how to fix this? thanks

TestService

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable]

public class TestService : System.Web.Services.WebService


 Core connection = new Core();
 DataTable dtUnits = new DataTable();
 QServiceQuery query = new QServiceQuery();

 [WebMethod]
 [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
 public string LoadInvoices()
 
 dtUnits = connection.DataTable_return(query.LoadInvoices());

 List<Invoice> list = new List<Invoice>();
 Invoice inv = new Invoice();

 //for (int i = 0; i < dtUnits.Rows.Count; i++)
 //
 inv.transNo = dtUnits.Rows[0]["transNo"].ToString();

 list.Add(inv);
 //
 //JavaScriptSerializer js = new JavaScriptSerializer();
 //Context.Response.Write(js.Serialize(list));
 return new JavaScriptSerializer().Serialize(list);
 

TestController

 HttpClient client = new HttpClient();
 client.BaseAddress = new Uri("http://localhost:9834/");
 //client.DefaultRequestHeaders.Add("appkey", "myapp_key");
 client.DefaultRequestHeaders.Accept.Add(
 new MediaTypeWithQualityHeaderValue("application/json"));

 HttpResponseMessage response = client.GetAsync("WebService/TestService.asmx/LoadInvoices").Result;
 if (response.IsSuccessStatusCode)
 
 try
 
 var transNo = response.Content.ReadAsAsync<IEnumerable<Invoices>>().Result;
 invoice.Add(new Invoices.Invoice() transNo = transNo.ToString() );
 listView.ItemsSource = invoice;
 
 catch (Exception ex)
 
 MessageBox.Show(ex.ToString());
 

 
 else
 
 MessageBox.Show("Error Code " + response.StatusCode + " : Message - " + response.ReasonPhrase);
 
 }

Inner Exception

Error in line 1 position 37. Expecting element 'ArrayOfInvoices' from
namespace 'http://schemas.datacontract.org/2004/07/TestController'..
Encountered 'Element' with name 'string', namespace
'http://tempuri.org/'

Exception Message
https://i.stack.imgur.com/mmfRf.png