未知列＆＃39;名称＆＃39;在＆＃39;字段列表中

Question

        MySqlConnection cnn = new MySqlConnection(mysqladdress);
        cnn.Open();
        MessageBox.Show("Registered!");

        MySqlCommand cmdinsert;

        try
        {
            cmdinsert = cnn.CreateCommand();
            cmdinsert.CommandText = "Insert into student(Name,Age,School,StudentID,Username,Password) values (@Name,@Age,@School,@StudentID,@Username,@Password)";
            cmdinsert.Parameters.AddWithValue("@Name", textBox1.Text.ToString());
            cmdinsert.Parameters.AddWithValue("@Age", textBox2.Text.ToString());
            cmdinsert.Parameters.AddWithValue("@School", textBox3.Text.ToString());
            cmdinsert.Parameters.AddWithValue("@StudentID", textBox5.Text.ToString());
            cmdinsert.Parameters.AddWithValue("@Username", textBox6.Text.ToString());
            cmdinsert.Parameters.AddWithValue("@Password", textBox7.Text.ToString());
            cmdinsert.ExecuteNonQuery();
        }
        catch (Exception)
        {
            throw;
        }

        finally
        {
            if (cnn.State == ConnectionState.Open)
            {
                cnn.Close();
                datagridviewfunction();
            }
        }

**总是有错误说：＆＃34;未知列＆＃39; StudentID＆＃39;在＆＃39;字段列表＆＃39;＆＃34; 问题出在＆＃34; throw＆＃34; 该怎么办？请帮助我，以便我可以转到下一个表格**