private async void LoadContacts()
{
var connection = await this.apiService.CheckConnection();
if (connection.IsSuccess)
{
await Application.Current.MainPage.DisplayAlert(
"Connection Error",
connection.Message,
"Accept");
return;
}
var response = await this.apiService.GetList <Contact>(
"https://apicontactsi220.azurewebsites.net/",
"api/",
"Contacts");
if (!response.IsSuccess)
{
await Application.Current.MainPage.DisplayAlert(
"GET Contact Error",
response.Message,
"Accept"
);
return;
}
MainViewmodel mainViewmodel = MainViewmodel.GetInstance();
mainViewmodel.ContactList = (List <Contact>)response.Result;
this.Contacts = new ObservableCollection <Contact>(this.ToContactView());
}
public static MainViewmodel GetInstance()
{
if (instance == null)
{
instance = new MainViewmodel();
}
return(instance);
}
private IEnumerable <Contact> ToContactView()
{
ObservableCollection <Contact> collection = new ObservableCollection <Contact>();
MainViewmodel main = MainViewmodel.GetInstance();
foreach (var lista in main.ContactList)
{
Contact contacto = new Contact();
contacto.ContactID = lista.ContactID;
contacto.Name = lista.Name;
contacto.Type = lista.Type;
contacto.ContactValue = lista.ContactValue;
collection.Add(contacto);
}
return(collection);
}