How can show Random value on page uesing with Array in C#

using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class RandomBook : System.Web.UI.UserControl
{
    datautl dut = new datautl();
    string[] queries = new string[6];
    int count1;
   
    protected void Page_Load(object sender, EventArgs e)
    {
        random();
        Random1();
       
    }
    #region randombook
    void random()
    {
        string myData = string.Empty;
      
        string strSql1 = "select count(sno) from B_Book";
        SqlDataReader drcount1 = dut.ExecuteReader(strSql1);
        if (drcount1.HasRows)
        {
            drcount1.Read();
            count1 = Convert.ToInt32(drcount1[0]);
        }
        Random randnum = new Random();
        //myData = myData + "<table width='100%' border='0' align='center' cellpadding='0' cellspacing='0' style='position: relative'  bgcolor='#E5E5E5'>";
        //myData = myData + "<tbody>";
        for (int i = 0; i < 6; i++)
        {
            int num = randnum.Next(1, count1);
           
            queries[i] = "select B_Book.*,B_Category.category as category,B_Category.sno as sno1 from B_Book,B_Category where B_Book.sno = " + num + " and  B_Category.sno=B_Book.Cat_id";
            //string strSqlques = "select B_Book.*,B_Category.category as category,B_Category.sno as sno1 from B_Book,B_Category where B_Book.sno = " + num + " and  B_Category.sno=B_Book.Cat_id";
            //SqlDataReader dr = dut.ExecuteReader(strSqlques);
            //    if (dr.Read())
            //        {
            //         myData = myData + "<tr>";
            //         myData = myData + "<td class='bookname' height='4'><div align='left'></td>";
            //         myData = myData + "</tr>";
            //         myData = myData + "<tr>";
            //         myData = myData + "<td height='4'class='grey1'><a href='Book_Details.aspx?H=1&ID=" + dr["sno"] + "&AID=" + dr["Author_1"] + "&Catname=" + dr["category"] + "' class='grey1'><strong>" + dr["Book_name"] + "</strong></a></td>";
            //         //myData = myData + "<td height='4'class='grey1'><a href='Book_Details.aspx?ID=" + dr["sno"] + "&AID=" + dr["Author_1"] + "&Catname=" + dr["category"] + "'><img src = 'UploadData/" + dr["Book_Image"].ToString() + "' width='100' height='162' border='0'><strong>" + dr["Book_name"].ToString() + "</strong></a></td>";
            //         myData = myData + "</tr>";
            //         myData = myData + "<tr>";
            //         myData = myData + "<td valign='top'><div align='left'>";
            //         myData = myData + "<table cellspacing='0' cellpadding='0' width='100%' border='0'>";
            //         myData = myData + "<tbody>";
            //         myData = myData + "<tr>";
            //         myData = myData + "<td valign='top' width='90' align='center'>";
            //         myData = myData + "<img src='UploadData/"+ dr["Book_Image"]+"' width='100' height='150' /></td>";
            //         myData = myData + "<td class='grey' valign='top'><br />";
            //         myData = myData + "</td>";
            //         myData = myData + "</tr>";
            //         myData = myData + "</tbody>";
            //         myData = myData + "</table>";
            //         myData = myData + "</div></td>";
            //         myData = myData + "</tr>";
            //         myData = myData + "<tr>";
            //         myData = myData + "  <td class='red' height='5'><div align='left'><U></U><strong></strong></div></td>";
            //         myData = myData + "</tr>";
            //     }
                //dr.Close();
           }
            //  myData = myData + "</tbody>";
            //  myData = myData + "</table>";
            // myLabel.InnerHtml = myData;
           //Response.Write(queries[0].ToString());
       // }
        }
    #endregion
  //******************************Random book1********************************************************
    private void Random1()
    {
        string str1 = queries[0].ToString();
        DataSet ds1 = new DataSet();
        ds1 = dut.Display(str1);
        ddl_listR1.DataSource = ds1;
        ddl_listR1.DataBind();
        string str2 = queries[1].ToString();
        DataSet ds2 = new DataSet();
        ds2 = dut.Display(str2);
        ddl_listR2.DataSource = ds2;
        ddl_listR2.DataBind();
        string str3 = queries[2].ToString();
        DataSet ds3 = new DataSet();
        ds3 = dut.Display(str3);
        ddl_listR3.DataSource = ds3;
        ddl_listR3.DataBind();
        string str4 = queries[3].ToString();
        DataSet ds4 = new DataSet();
        ds4 = dut.Display(str4);
        ddl_listR4.DataSource = ds4;
        ddl_listR4.DataBind();
        string str5 = queries[4].ToString();
        DataSet ds5 = new DataSet();
        ds5 = dut.Display(str5);
        ddl_listR5.DataSource = ds5;
        ddl_listR5.DataBind();
        string str6 = queries[5].ToString();
        DataSet ds6 = new DataSet();
        ds6 = dut.Display(str6);
        ddl_listR6.DataSource = ds6;
        ddl_listR6.DataBind();
      
    }
   
     
     //*************************************************************************************
   
}