gistfile1.cs

        private void saveButton_Click(object sender, EventArgs e)
        {
            var portfolioName = FindViewById<EditText>(Resource.id.portfolioName);

            _repo.SavePortfolio(new Portfolio() {Name = portfolioName.Text.ToString()});

            Toast.MakeText(this, "You saved: " + portfolioName.Text, ToastLength.Short).Show();

            var intent = new Intent();
            SetResult(Result.Ok, intent);
            Finish();
        }