paging on gridview not working inside update panel ?

default.aspx
----------------


       
                            CssClass="mGrid" AlternatingRowStyle-CssClass="alt" PagerStyle-CssClass="pgr" AllowSorting="true"
                            AutoGenerateColumns="False" DataKeyNames="id" OnPageIndexChanging="gvRef_PageIndexChanging"
                            PageSize="5" AllowPaging="true" OnRowDataBound="gvRef_RowDataBound" OnSorting="gvRef_Sorting" OnRowCommand="gvRef_RowCommand">
                           
                           
                           
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       

                                           
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                       
                                   
                                   
                               
                               
                                   
                                   
                                   
                               
                               
                                   
                                       
                                       

                                       
                                   
                                   
                               
                               
                                   
                                       

                                       
                                   
                                   
                               
                               
                                   

                                       
                                   
                                   
                                   
                               
                               
                                   

                                        E Profile

                                       

                                         E Status
                                     <%--   --%>

                                   
                                   
                               

                               
                                   
                                       
                                       
                                   
                                   
                               

                               
                                   
                                   
                                   
                               
                               
                                   

                                       
                                   
                                   
                                       
                                   
                                   
                               

                           
                           


                           
                                No Profiles ...
                           
                           
                           
                       

   

   


Default.aspx.cs
---------------------
  private void LoadGridView()
        {
            GatewayEntities gt = new GatewayEntities();
            IFormatProvider culture = new CultureInfo("en-US", true);
            string opName = "0"; int? opCode = 0; string canName = "0"; string emilId = "0"; string mobile = "0"; string notice = "0";
            string recName = "0"; string keySkill = "0"; int profStatus = 0; int countryId = 0;
            DateTime? postedDate = Convert.ToDateTime("01/01/2000");
            int clientId = 0;
            DateTime fDate = Convert.ToDateTime("01/01/2000");
            DateTime tDate = Convert.ToDateTime("01/01/2000");


            if (Request.QueryString.Count == 2 && Session["click"] == null)
            {
                ddlProfStatus.SelectedIndex = ddlProfStatus.Items.IndexOf(ddlProfStatus.Items.FindByText(Request.QueryString[1].ToString()));
            }
            else if (Request.QueryString.Count >= 3 && Session["click"] == null)
            {
                ddlProfStatus.SelectedIndex = ddlProfStatus.Items.IndexOf(ddlProfStatus.Items.FindByText(Request.QueryString[2].ToString()));

            }

            if (txtOpeningName.Text != string.Empty)
                opName = txtOpeningName.Text;
            if (txtOpeningCode.Text != string.Empty)
                opCode = Convert.ToInt32(txtOpeningCode.Text.Trim());
            else
                opCode = null;
            if (txtCandidateName.Text != string.Empty)
                canName = txtCandidateName.Text;
            if (txtEmailId.Text != string.Empty)
                emilId = txtEmailId.Text;
            if (txtMobile.Text != string.Empty)
                mobile = txtMobile.Text;
            if (txtNotice.Text != string.Empty)
                notice = txtNotice.Text;
            if (txtRecruiterName.Text != string.Empty)
                recName = txtRecruiterName.Text;
            if (txtKeySkill.Text.Length > 0)
                keySkill = txtKeySkill.Text;
            if (ddlProfStatus.SelectedIndex > 0)
                profStatus = Convert.ToInt32(ddlProfStatus.SelectedValue);
            if (txtPostedDate.Text.Length > 0)
            {
                DateTime dts = Convert.ToDateTime(txtPostedDate.Text);
                postedDate = dts;// (DateTime.ParseExact(dts, "dd/MM/yyyy", culture)).ToShortDateString(); //Convert.ToDateTime(Convert.ToDateTime(txtPostedDate.Text).ToShortDateString());
            }
            if (ddlCountry.SelectedIndex > 0)
                countryId = Convert.ToInt32(ddlCountry.SelectedValue);

            //client search from todate
            if (ddlClient.SelectedIndex > 0)
                clientId = Convert.ToInt32(ddlClient.SelectedValue);
            if (txtFroDate.Text.Length > 0)
                fDate = Convert.ToDateTime(txtFroDate.Text);
            if (txtToDate.Text.Length > 0)
                tDate = Convert.ToDateTime(txtToDate.Text);

            Session["searchCo"] = null;
            Session["searchCo"] = opName.ToString() + "," + opCode + "," + canName + "," + emilId + "," + mobile + "," + notice + "," + recName + "," + keySkill + "," + profStatus + "," + postedDate + "," + countryId;


            if (ViewState["export"] != null)
            {
                //FOR EXPORT TO EXCEL
                int id = 0;
                var exp = gt.usp_search_profiles_client_dates101(opName, opCode == null ? 0 : opCode, canName, emilId, mobile, notice, recName, (opCode == 0 && opCode != null) ? "2" : "0", keySkill, profStatus, countryId, fDate, tDate, clientId).ToList();
                var expo = (from c in exp
                            select new
                            {
                                Id = c.id,
                                CandidateName = c.candidate_name,
                                opening_name = c.opening_name,
                                Client = c.Client,
                                PostedDate = c.submitted_date,
                                Recruiter = c.submitted_by_name,
                                KeySkills = c.key_skills,
                                Exp = c.exp_years,
                                ContactNumber = c.contact_number,
                                AvailToJoin = c.notice_period,
                                CurrentLocation = c.current_location,
                                CurrentPackage = c.current_package,
                                OfferedPackage = c.proposed_package,
                                ConsultCheck = ConsultChecked(c.id),
                                EmpType = c.EMP_TYPE


                            }).ToList();
                GridView1.AllowPaging = false;


                CheckBox chk = (CheckBox)gvRef.HeaderRow.FindControl("chkAll");

                if (chk.Checked == true)
                    GridView1.DataSource = expo.ToList();
                else
                    GridView1.DataSource = expo.Where(d => d.ConsultCheck == "true").ToList();
                GridView1.DataBind();
                GridView1.Visible = true;

                if (GridView1.Rows.Count > 0)
                {
                    lblMsg.Text = "";
                }
                else
                {
                    lblMsg.Text = "Please Select Profiles and Click again";
                    return;
                }
                //FOR EXPORT TO EXCEL

            }

            else
            {
                gvRef.DataSource = objCs.GetConsultants(opName, opCode, canName, emilId, mobile, notice, recName, keySkill, profStatus, countryId, fDate, tDate, clientId);
                gvRef.DataBind();
                ///count
                int RecordsCount = gt.usp_search_profiles_client_dates101(opName, opCode == null ? 0 : opCode, canName, emilId, mobile, notice, recName, (opCode == 0 && opCode != null) ? "2" : "0", keySkill, profStatus, countryId, fDate, tDate, clientId).ToList().Count();
                lblSearchCount.Text = RecordsCount > 0 ? RecordsCount.ToString() + " Records found.." : "No Records found";

            }
            gt = null;

        }
protected void gvRef_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            gvRef.PageIndex = e.NewPageIndex;
            LoadGridView();
            upd.Update();
        }


this is my coding update panel must  use becoz i have some more events for that but give me solution

   1) Please remove Commet update panel and content template and check if any error are    there.
   2) you have give Event of Gridview
     
      protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            // Bind gridview here
        }
  
    mark as answer if i had help you.