vs2010 的reportview 自定义报表
我用vs2010 的reportview
做报表，
但是好像没有用到reportview 的datasource.
我该怎么改？
我该怎么操作？
请详细一些，谢谢。


MySqlConnection connection = new MySqlConnection(MyConnectionString);
MySqlCommand cmd_db = connection.CreateCommand();
cmd_db.CommandText = "SELECT auto_id,db_domain,db_ip,db_id,db_enable, ";
cmd_db.CommandText += " FROM_UNIXTIME(db_write_date) as db_write_date1 ";
cmd_db.CommandText += " FROM ent_db WHERE db_contract_id =1";
MySqlDataAdapter adap_db = new MySqlDataAdapter(cmd_db);
DataSet ds_db = new DataSet();
adap_db.Fill(ds_db);

try
{
reportViewer1.Visible = true;

ReportDataSource rds = new ReportDataSource("DataSet1_Sales_by_Year", ds_db.Tables[0]);

reportViewer1.LocalReport.DataSources.Clear();
reportViewer1.LocalReport.DataSources.Add(rds);

this.textBox1.Text = ds_db.Tables[0].Rows[0]["db_domain"].ToString();
this.textBox2.Text = ds_db.Tables[0].Rows[0]["db_ip"].ToString();
reportViewer1.LocalReport.Refresh();

}
catch (Exception ex)
{
String message = ex.Message;
MessageBox.Show(message);

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