Sortable GridView using jQuery's TableSorter

using System;
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;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            this.gvEmployees.DataBind();
        }
    }

    protected void odsEmployee_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
    {
        e.InputParameters["connectionString"] = ConfigurationManager.ConnectionStrings["AdventureWorksConnectionString"].ConnectionString;
        e.InputParameters["PageNumber"] = this.hfPageNumber.Value;
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        if (Convert.ToInt32(this.hfPageNumber.Value) <= 20)
        {
            this.hfPageNumber.Value = (Convert.ToInt32(this.hfPageNumber.Value) + 1).ToString();
        }
        else
        {
            this.hfPageNumber.Value = "1";
        }
        this.gvEmployees.DataBind();
    }

    protected void gvEmployees_DataBound(object sender, EventArgs e)
    {
        if (this.gvEmployees.Rows.Count > 0)
        {
            gvEmployees.UseAccessibleHeader = true;
            gvEmployees.HeaderRow.TableSection = TableRowSection.TableHeader;
            gvEmployees.FooterRow.TableSection = TableRowSection.TableFooter;
        }
    }

    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        this.hfPageNumber.Value = "1";
        this.hfIsDebug.Value = this.CheckBoxList1.Items[0].Selected.ToString().ToLower();
        this.hfInitialSortByColumnIndex.Value = this.DropDownList1.SelectedValue;        
        this.gvEmployees.CssClass = this.RadioButtonList1.SelectedValue;
        this.gvEmployees.DataBind();
    }
}