Sortable GridView using jQuery's TableSorter

using System;
using System.Data;
using System.Configuration;
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.Collections.Generic;

/// <summary>
/// Summary description for AdventureWorks
/// </summary>
public class AdventureWorks
{

    public AdventureWorks()
    {
        //
        // TODO: Add constructor logic here
        //
    }
}

public class Employee
{
    private DataAccess.AdventureWorksDataContext _AdventureWorksDataContext;
    public Employee()
    {

    }

    public Employee(string connectionString)
    {
        this.Initialize(connectionString);
    }

    private void Initialize(string connectionString)
    {
        this._AdventureWorksDataContext = new DataAccess.AdventureWorksDataContext(connectionString);
    }

    public IEnumerable<DataAccess.Employee> Retrieve(Int32 pageNumber, string connectionString)
    {
        this.Initialize(connectionString);
        return this.Retrieve(pageNumber);
    }

    public IEnumerable<DataAccess.Employee> Retrieve(Int32 pageNumber)
    {
        return this._AdventureWorksDataContext.Employees.Skip((pageNumber - 1) * 10).Take(10).ToArray<DataAccess.Employee>();
    }
}