private void DeleteAccount()
{
new AlertDialog.Builder(this)
.SetCancelable(true)
.SetMessage("Delete this item?")
.SetPositiveButton("Yes", (sender, args) =>
{
SilverCoinsManager.DeleteAccount(account.Id);
OnBackPressed();
Finish();
})
.SetNegativeButton("No", (sender, args) => { })
.Show();
}