如何在Datagridview中修改数据后，保存操作结果

就打算在组件里面，可以增减直接操作单行格，但不知道怎么保存操作结果，并且数据库的表页跟着变化

以下是组件实现代码

 string tableName = (radioButtonMyTable1.Checked == true ? "student_table" : "MyTable2");
            string connectionString = Properties.Settings.Default.c_ConnectionString;
            SqlConnection conn = new SqlConnection(connectionString);
            SqlDataAdapter sqlDataAdapter = new SqlDataAdapter("select * from " + tableName, conn);
            adapter = sqlDataAdapter;
            SqlCommandBuilder builder = new SqlCommandBuilder(adapter);
            adapter.InsertCommand = builder.GetInsertCommand();
            adapter.DeleteCommand = builder.GetDeleteCommand();
            adapter.UpdateCommand = builder.GetUpdateCommand();
            DataTable table;
            table = new DataTable();
            adapter.Fill(table);