gistfile1.txt

        void tr_LongClick(object sender, Android.Views.View.LongClickEventArgs e)
        {
            longClickOptions = new IList<char>[] {"Edit".ToCharArray(), "Delete".ToCharArray()};
            var dialogBuilder = new AlertDialog.Builder(this);
            dialogBuilder.SetTitle("Options");
            dialogBuilder.SetItems(longClickOptions, tr_LongClick_Options);
            dialogBuilder.Create().Show();
        }

        private void tr_LongClick_Options(object sender, DialogClickEventArgs e)
        {
            Toast.MakeText(this, "Option: " + longClickOptions[e.Which], ToastLength.Long).Show();
        }