consuming asmx webservice in xamarin forms - web-services

Question

I am working on a login page in Xamarin forms and I need to consume an asmx webservice in order to connect to the sql server. I used this example: https://github.com/fabiosilvalima/FSL.ConsummingAsmxServicesInXamarinForms, and tried to apply the same steps for my app. but I got an error.
here's my code:
ILogin.cs:
namespace App33.Models
{
public interface ILogin
{
string Error { get; set; }
bool ValidUser { get; set; }
}
}
ILoginSoapService.cs
public interface ILoginSoapService
{
Task<List<ILogin>> Login(string namee, string passs);
}
in App.xaml.cs
private static ILoginSoapService _loginSoapService;
public static ILoginSoapService LoginSoapService
{
get
{
if (_loginSoapService == null)
{
_loginSoapService = DependencyService.Get<ILoginSoapService>();
}
return _loginSoapService;
}
Main.xaml.cs
public MainPage()
{
InitializeComponent();
}
async void OnButtonClicked(object sender, EventArgs e)
{
var entr_usrname = this.FindByName<Entry>("username");
string usrname = entr_usrname.Text;
var entr_pass = this.FindByName<Entry>("Password");
string pass = entr_pass.Text;
var state = await App.LoginSoapService.Login(usrname,pass);
if (state[0].ValidUser == true)
{
await DisplayAlert("Alert", "You have been alerted", "OK");
}
}
this is for the portable app. my webservice is added to the web reference as LoginWs. it has the following codes:
Result.cs:
public class Result
{
public string Error { get; set; }
public bool ValidUser { get; set; }
}
WebService1.asmx.cs:
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
// [System.Web.Script.Services.ScriptService]
public class WebService1 : System.Web.Services.WebService
{
[WebMethod]
public Result Login(string userName, string userPass)
{
SqlConnection conn=new SqlConnection (new DBConnection().ConnectionString);
Result result = new Result();
try
{
SqlCommand cmd = new SqlCommand("SELECT userName, password FROM users where CONVERT(VARCHAR, username)=#username and CONVERT(VARCHAR, password)=#password");
cmd.Parameters.AddWithValue("username", userName);
cmd.Parameters.AddWithValue("password", userPass);
cmd.Connection = conn;
if (conn.State==System.Data.ConnectionState.Closed)
{
conn.Open();
}
SqlDataReader dr = cmd.ExecuteReader();
if (dr.HasRows)
{
result.ValidUser = true;
return result;
}
else
{
result.ValidUser = false;
}
}
catch(Exception ex)
{
result.Error = ex.ToString();
}
finally
{
conn.Close();
}
return result;
}
}
}
now in App.Android:
Result.cs
namespace App33.Droid.LoginWs
{
public partial class Result : ILogin
{
}
}
LoginSoapService.cs
[assembly: Dependency(typeof(App33.Droid.LoginSoapService))]
namespace App33.Droid
{
public sealed class LoginSoapService :ILoginSoapService
{
LoginWs.WebService1 service;
public LoginSoapService()
{
service = new LoginWs.WebService1()
{
// Url = "http://codefinal.com/FSL.ConsummingAsmxServicesInXamarinForms/Customers.asmx" //remote server
Url = "http://192.168.0.106/site2/WebService1.asmx" //localserver - mobile does not understand "localhost", just that ip address
};
}
public async Task<List<ILogin>> Login( string namee,string pass)
{
return await Task.Run(() =>
{
var result = service.Login(namee,pass);
return new List<ILogin>(result);
});
}
}
}
the error i'm getting is in this line:return new List(result);. it says: Error CS1503 Argument 1: cannot convert from 'App33.Droid.LoginWs.Result' to 'int'. I can't figure out what the peoblem is. sorry for the long question. any help is appreciated.