private async void DeleteContact(ContactViewModel contactViewModel)
{
if (await _pageService.DisplayAlert("Delete contact", $"Are you sure that you want to delete {contactViewModel.FullName} from your contacts?", "Yes", "Cancel"))
{
Contacts.Remove(contactViewModel);
var contact = await _contactStore.GetContact(contactViewModel.Id);
await _contactStore.DeleteContact(contact);
}
}
private async Task DeleteContact(ContactViewModel contactViewModel)
{
if (await _pageService.DisplayAlert("Warning", $"Are you sure you want to delete {contactViewModel.FullName}?", "Yes", "No"))
{
Contacts.Remove(contactViewModel);
var contact = await _contactStore.GetContact(contactViewModel.Id);
await _contactStore.DeleteContact(contact);
}
}
public async Task DeleteContact(ContactViewModel contactViewModel)
{
var result = await _pageService.DisplayAlert("Warning", String.Format("Are you sure you want to delete {0}", contactViewModel?.FullName), "Yes", "No");
if (result)
{
Contacts.Remove(contactViewModel);
var contact = await _contactStore.GetContact(contactViewModel.Id);
await _contactStore.DeleteContact(contact);
}
}
/// <summary>
/// Metodo encargado de eliminar un contacto, mostrando alerta al usuario mediante el servicio de pagina.
/// </summary>
/// <param name="contactViewModel">Contacto a eliminar de la BBDD</param>
/// <returns>Tarea en hilo a parte.</returns>
private async Task DeleteContact(ContactViewModel contactViewModel)
{
var a = "";
//Si el usuario confirma la eliminacion del contacto
if (await _pageService.DisplayAlert("Warning", $"Are you sure you want to delete {contactViewModel.FullName}?", "Yes", "No"))
{
//Lo eliminamos de la listView
Contacts.Remove(contactViewModel);
// Creamos un contacto y lo recogemos de la BBDD para ahorrar memoria para no tenerlo constantemente inicializado,
// pues si crece mucho la lista de contactos podria desperdiciarse memoria, despues lanzamos la consulta para eliminar de la BBDD el contacto
var contact = await _contactStore.GetContact(contactViewModel.Id);
await _contactStore.DeleteContact(contact);
}
}
private async Task DeleteContact(ContactViewModel contactViewModel)
{
if (await _pageService.DisplayAlert("Warning", $"Are you sure you want to delete {contactViewModel.FullName}?", "Yes", "No"))
{
Contacts.Remove(contactViewModel);
// We're working with ContactViewModel objects on this page.
// But to delete a contact, we need a Contact object. Here
// we're getting the Contact again from the database. Another
// solution would be to store the Contact objects we initially
// fetch. But this would require additional memory and as the
// number of contacts grows, it can take unnecessary amount of
// memory on the device. So, I prefer to get the contact explicitly
// here.
var contact = await _contactStore.GetContact(contactViewModel.Id);
await _contactStore.DeleteContact(contact);
}
}
