Nrthugu

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