xamarin 形式的 label 的绑定值

Question

我有这个代码来绑定值到 c# 应用程序中的“label1.text”现在我正在尝试在 android xamarin 中使用相同的方法，

任何帮助将不胜感激！

        public void finalGrade1()
        {
            SQLiteConnection cn = new SQLiteConnection(@"Data Source=noPassDB.db;Version=3;New=False;Compress=True");
            string sql2 = "SELECT SUM(score) / sum(hours) AS SCORE FROM (SELECT Num,name,grades,hours,(hours * points) AS score FROM materials WHERE materials_ID IN (SELECT max(materials_ID) FROM materials GROUP BY materials.Num)ORDER BY materials.Num)";

            SQLiteCommand cmd = new SQLiteCommand(sql2, cn);
            cn.Open();
            using (SQLiteDataReader dr = cmd.ExecuteReader())
            {

                if (dr.Read())
                {
                    

                    label1.Text = dr["SCORE"].ToString();
                    



                }
            }

        }