读取数据库数据后 如何写入到RichTextBox中

读取数据库数据后 怎么写入到RichTextBox中？
RT 求助

[解决办法]

C# code

  private void Form1_Load(object sender, EventArgs e)        {            string connStr, selectCmd;            int i;            connStr =            "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=SCOREDB.mdb";            selectCmd = "SELECT * FROM SCORE";            OleDbConnection conn;            OleDbCommand cmd;            OleDbDataReader reader;            conn = new OleDbConnection(connStr);            conn.Open();            cmd = new OleDbCommand(selectCmd, conn);            reader = cmd.ExecuteReader();            for (i = 0; i < reader.FieldCount; i++)            {                txtShow.Text += reader.GetName(i) + "\t";            }            txtShow.Text += "\n\n";            while (reader.Read())            {                for (i = 0; i < reader.FieldCount; i++)                {                    txtShow.Text += reader[i] + "\t";                }                txtShow.Text += "\n";            }            conn.Close();        }