(C#) display the chart extracting from Access mdb database of stock data

gistfile1.cs

 private void display_chart(int code ,  int miniY)
        {



            chart1.ChartAreas[0].AxisY.Minimum = miniY;
            String meigara = code.ToString();


            // Resolve the address to the Access database
            // string fileNameString = @"stock_mdb.mdb";
            string fileNameString = @"c:\mdb\stock_mdb.mdb";


            // Initialize a connection string    
            string myConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileNameString;

            // Define the database query    
            string mySelectQuery = "SELECT * FROM table_stock where meigara='" + meigara + "' order by hiduke;";


            // Create a database connection object using the connection string    
            OleDbConnection myConnection = new OleDbConnection(myConnectionString);

            // Create a database command on the connection using query    
            OleDbCommand myCommand = new OleDbCommand(mySelectQuery, myConnection);

            myConnection.Open();

            // set chart data source - the data source must implement IEnumerable
            chart1.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection);

            // Set series members names for the X and Y values 
            chart1.Series[0].XValueMember = "hiduke";
            chart1.Series[0].YValueMembers = "evalue";
            chart1.Series[0].ChartType = SeriesChartType.Line;

            chart1.Series[1].XValueMember = "hiduke";
            chart1.Series[1].YValueMembers = "hvalue";
            chart1.Series[1].ChartType = SeriesChartType.Line;

            // Data bind to the selected data source
            //chart1.DataBind();

        
        
        }