I did the following and got the below error msg:
The error message :
An exception of type 'System.AggregateException' occurred in mscorlib.dll but was not handled in user code
Additional information: One or more errors occurred.
If there is a handler for this exception, the program may be safely continued.
Question :
a) What seems to be the problems in above code as I just wanted to retrieve a record.
b) Must use Async Methods in WinRT or Windows store app?
c) Will below code able to retrieve record from Navision?
-----1------- Windows store App to access Nav Web Services
1.1 Added the service reference in WinRT App
1.2 Added a class1.cs in WinRT App
private async void btnImportCustomer_Click(object sender, RoutedEventArgs e)
{
Task<wsCustomerList.Customer_List> _asyncCustomer = Class1.Customer.Listing.GetAsyncRecords("Y007");
### encounterd error here: ####
string g_strmsg = _asyncCustomer.Result.No + " “ +_asyncCustomer.Result.Name;
}
-----2---------- Class1.cs use inside WinRT App Project:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MobileNAVSalesSystem
{
class Class1
{
public static string _webserviceurlpage = "http ://{0}:{1}/{2}/WS/{3}/Page/{4}";
public static string _webserviceurlcodeunit = "http://{0}:{1}/{2}/WS/{3}/Codeunit/{4}";
public static Uri _webserviceuripage = null;
public static Uri _webserviceuricodeunit = null;
#region Customer
public class Customer
{
public class Card
{
//Do something for Card Type
}
public class Listing
{
public static wsCustomerList.Customer_List_PortClient GetService()
{
_webserviceuripage = new Uri(string.Format(_webserviceurlpage, "msxxx", "7047", "DynamicsNAV_xxx", Uri.EscapeDataString("Global xxx Pte. Ltd."), "Customer List"));
System.ServiceModel.BasicHttpBinding _wSBinding = new System.ServiceModel.BasicHttpBinding();
_wSBinding.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.TransportCredentialOnly;
_wSBinding.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.Windows;
_wSBinding.MaxBufferSize = Int32.MaxValue;
_wSBinding.MaxReceivedMessageSize = Int32.MaxValue;
//_wSBinding.UseDefaultWebProxy = false;
wsCustomerList.Customer_List_PortClient _ws = new wsCustomerList.Customer_List_PortClient(_wSBinding, new System.ServiceModel.EndpointAddress(_webserviceuripage));
_ws.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Delegation;
_ws.ClientCredentials.Windows.ClientCredential = new System.Net.NetworkCredential("xxx","xxxx", "companyName");
return _ws;
}
//-------------------------- Using Async Methods
public static async Task<wsCustomerList.Customer_List> GetAsyncRecords(string _No)
{
wsCustomerList.Customer_List_PortClient _ws = GetService();
wsCustomerList.Customer_List _List = (await _ws.ReadAsync(_No)).Customer_List;
if (_ws.State == System.ServiceModel.CommunicationState.Opened)
await _ws.CloseAsync();
return _List;
}
public static async Task<wsCustomerList.Customer_List[]> GetAsyncRecords(wsCustomerList.Customer_List_Filter[] _filters)
{
wsCustomerList.Customer_List_PortClient _ws = GetService();
wsCustomerList.Customer_List[] _List;
List<wsCustomerList.Customer_List_Filter> _filterArray = new List<wsCustomerList.Customer_List_Filter>();
_filterArray.AddRange(_filters);
_List = (await _ws.ReadMultipleAsync(_filterArray.ToArray(), null, 0)).ReadMultiple_Result1;
if (_ws.State == System.ServiceModel.CommunicationState.Opened)
await _ws.CloseAsync();
return _List;
}
public static async Task<wsCustomerList.Customer_List[]> GetAsyncRecords(wsCustomerList.Customer_List_Filter[] _filters, string _bookmarkkey)
{
wsCustomerList.Customer_List_PortClient _ws = GetService();
wsCustomerList.Customer_List[] _List;
List<wsCustomerList.Customer_List_Filter> _filterArray = new List<wsCustomerList.Customer_List_Filter>();
_filterArray.AddRange(_filters);
_List = (await _ws.ReadMultipleAsync(_filterArray.ToArray(), _bookmarkkey, 0)).ReadMultiple_Result1;
if (_ws.State == System.ServiceModel.CommunicationState.Opened)
await _ws.CloseAsync();
return _List;
}
public static async Task<wsCustomerList.Customer_List[]> GetAsyncRecords(wsCustomerList.Customer_List_Filter[] _filters, string _bookmarkkey, int _setsize)
{
wsCustomerList.Customer_List_PortClient _ws = GetService();
wsCustomerList.Customer_List[] _List;
List<wsCustomerList.Customer_List_Filter> _filterArray = new List<wsCustomerList.Customer_List_Filter>();
_filterArray.AddRange(_filters);
_List = (await _ws.ReadMultipleAsync(_filterArray.ToArray(), _bookmarkkey, _setsize)).ReadMultiple_Result1;
if (_ws.State == System.ServiceModel.CommunicationState.Opened)
await _ws.CloseAsync();
return _List;
}
}
}
#endregion
}
//--- end namespace
}