Asp.Net C# Object reference not set to an instance of an object

//****************************************************************
//cmsSchema.aspx.cs Code behind Page
//****************************************************************
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
using System.Data.Common;
using System.IO;
using System.Text;
using System.Drawing;
using System.Data.OleDb;
 
public partial class cmsSchema : System.Web.UI.Page
{
    public string sSql;
    public string sDir;
    public bool bDatabaseExists = false;
    public bool bTableExists = false;
    public string sDBServer = System.Net.Dns.GetHostName();
    public string cboSQLServers = System.Net.Dns.GetHostName();
    public string sDataSource = "fuertemon";
    public object sDBServerProvider = "\\sqlexpress";
    public string sUSERid = "sa";
    public string sDBName = "Master";
    public string sDBPass = "h6web97";
    public string TempTable = "Employ";
    public string TempProcedure = "UpdateEmployDetails";
    public string strTable;
    public string strProcedure;
    public SqlConnection connection;
    public string ConnectionString;
    public string MsgBoxDatabase = null;
    public string MsgBoxTable = null;
    public string MessageBox = null;
    public string MessageBoxProcedure = null;
    public DataView Source;
    public DataSet Ds;
    public string sOutput;
    public string strResponse;
    public int i;
    public string tablePage;
    public string dbName;
    public string strCountdb;
    public string dbTableName;
    public string oTableName;
    public string strTbleCount;
    public string odbName;
    public string odbTableName;
    protected void Page_Load(object sender, System.EventArgs e)
    {
        HttpContext _Context = HttpContext.Current;
        if (Page.IsPostBack)
        {
            
        }
        if (!Page.IsPostBack)
        {
            BindGrid();
        }
        //***************************************************************
        //Response.Write("1#" + Request["tablePage"]);
        LabelPage.Text = (Request["tablePage"]);
        //***************************************************************
        SqlConnection sConn = null;
        SqlDataReader sReader = null;
        SqlCommand sComm = null;
        string sMyString = null;
        Session["connStringValue"] = "server=" + sDBServer + sDBServerProvider + ";uid=" + sUSERid + ";pwd=" + sDBPass;
        sMyString = Session["connStringValue"] + ";Initial Catalog=" + sDBName;
        sConn = new System.Data.SqlClient.SqlConnection(Session["connStringValue"].ToString());
        sComm = new System.Data.SqlClient.SqlCommand("Select * from sys.databases WHERE name NOT IN ('master','model','msdb','tempdb')", sConn);
        try
        {
            sConn.Open();
            sReader = sComm.ExecuteReader();
            Repeater1.DataSource = sReader;
            Repeater1.DataBind();
            sReader.Close();
        }
        catch (Exception ex)
        {
            // all other .NET exceptions
            Labelerr.Text = ex.ToString();
        }
        catch
        {
            // all other exceptions
 
        }
        finally
        {
            if (sConn.State != ConnectionState.Closed)
            {
                sConn.Close();
            }
        }
        //***************************************************************
        Init();
        //testDatabase_SelectedIndexChanged(DropDownList1, Nothing)
        //****************************************************************
        if (!(odbName==""));
        {
            Response.Write("odbName:" + odbName + "  ");
            odbName = Request.QueryString["db"].Trim(' ');
        }
        if (!(dbTableName == "")) ;
        {
            Response.Write("dbTableName:" + dbTableName + "  ");
            dbTableName = Request.QueryString["tableName"].Trim(' ');
        }
        string oMyString = null;
        SqlDataReader odbreader = null;
        SqlCommand odbcomm = null;
        int oCounter = 0;
        Session["connStringValue"] = "server=" + sDBServer + sDBServerProvider + ";uid=" + sUSERid + ";pwd=" + sDBPass;
        oMyString = Session["connStringValue"] + ";Initial Catalog=" + odbName;
        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(oMyString);
        SqlConnection odbconn = new SqlConnection(builder.ConnectionString);
        odbconn.Open();
        DataTable tblDatabases = odbconn.GetSchema(SqlClientMetaDataCollectionNames.Tables);
        odbconn.Close();
        ArrayList oItems = new ArrayList();
        ArrayList data = new ArrayList();            
        foreach (DataRow rowDatabase in tblDatabases.Rows)
        {
            if (!(string.IsNullOrEmpty(rowDatabase["table_name"].ToString())))
            {
                builder.InitialCatalog = rowDatabase["table_name"].ToString();
                odbconn.ConnectionString = builder.ConnectionString;
                oItems.Add(rowDatabase["table_name"].ToString());
                //hs.Add("Inv#", "001");
                data.Add(KV("Table:", rowDatabase["table_name"].ToString()));
            }
            oCounter += 1;
        }
        odbconn = new System.Data.SqlClient.SqlConnection(Session["connStringValue"].ToString());
        if (odbconn.State != ConnectionState.Closed)
        {
            odbconn.Close();
        }
        //grid.DataSource = oItems;
        //grid.DataBind();
        repTest.DataSource = data;
        repTest.DataBind();
        //Session["oItems"] = oItems;
        //Session["oCounter"] = oCounter;
        
        //****************************************************************
    }
    // KV for KeyValue is defined as returning an anonymous object:
    private object KV(string Key, string Value)
        {
            return new { Key, Value };
        }
    private static new void Init()
    {
        // initiate variables etc
    }
    protected override void OnInit(EventArgs e)
    {
        //MyBase.OnInit(e);
        //Converted event handler wireups:
        Load += Page_Load;
        //AddHandler DropDownList1.SelectedIndexChanged, AddressOf testDatabase_SelectedIndexChanged
        //AddHandler DropDownList1.SelectedIndexChanged, AddressOf DropDownList1_SelectedIndexChanged
        //AddHandler grid.SelectedIndexChanged, AddressOf grid_SelectedIndexChanged
        //AddHandler empDetails.PageIndexChanging, AddressOf empDetails_PageIndexChanging1
        //AddHandler empDetails.ModeChanging, AddressOf empDetails_ModeChanging
        //AddHandler empDetails.ItemUpdating, AddressOf empDetails_ItemUpdating
        //AddHandler empDetails.ItemUpdated, AddressOf empDetails_ItemUpdated
    }
    public void BindGrid()
    {
        //***************************************************************
 
        //***************************************************************
    }
}
<%
    //*************************************************
    //cmsSchema.aspx Code Page
    //*************************************************
%>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="cmsSchema.aspx.cs" Inherits="cmsSchema" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Untitled Page</title>
<link rel="stylesheet" type="text/css" href="../css/outpost.css" />
</head>
<body style="background-image: url(../images/WebFront.jpg); background-repeat:repeat-x">
<!--START PAGE SECTION-->
<table id="table1" style="z-index:101; position:absolute; top:50px; left:5px; width:auto">
<tr>
<td>
<div style="width:900px; height:470px; font-size:smaller; overflow:auto;  border: 0px solid #000000" id="DIV1" onclick="return DIV1_onclick()">
<form id="form1" runat="server">
Heading:1:#
<% 
 for (var i = 0; i <= 5; i++)
{
%>
 <a href="cmsSchema.aspx?tablePage=<%=i%>">[<%=i%>]</a>
<%
}
 
%><a href="../Default.aspx">[Return]</a><br />
Heading:2:#Page:<asp:Label ID="LabelPage" runat="server"></asp:Label><br />
<asp:Repeater id="Repeater1" runat="server">
      <HeaderTemplate>
      </HeaderTemplate>
      <ItemTemplate>
      <a href="cmsSchema.aspx?db=<%# DataBinder.Eval(Container.DataItem, "name")%>">
      <%# DataBinder.Eval(Container.DataItem, "name")%></a>&nbsp;&nbsp;&nbsp; 
      </ItemTemplate>
      <FooterTemplate>
      </FooterTemplate>
      </asp:Repeater><br />
Heading:3:#<br />
<asp:Repeater runat="server" ID="repTest">
    <ItemTemplate>
<a href="cmsSchema.aspx?tableName=<%# DataBinder.Eval(Container.DataItem, "Value")%>">
<%# DataBinder.Eval(Container.DataItem, "Value")%></a>&nbsp;&nbsp;&nbsp; 
<!--
            <%#Eval("Key") %><br />
            <%#Eval("Value") %> 
  -->       
    </ItemTemplate>
</asp:Repeater>
  
<div id="news" class="news" style="float:left;border:1px solid #CCC;padding:.5em;">
<h5 class="headline">Table Data</h5>
<asp:Label ID="Labelerr" runat="server"></asp:Label><br />
<asp:Label ID="detailsLabel" runat="server" />
</div>
</form>
</div>
</td>
</tr>
</table>
<!--END PAGE SECTION CODE-->
</body>
</html>