Unable to make show and hide for panels work inside updatepanel

Hey folks, I am trying my darnedest to make this work but it simply won't do it. I have my asp:Panel calls inside the updatepanel so I am only trying to hide those elements contained inside the panels. Here is my code:

.aspx

<%@ Page Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="ManageVulns.aspx.cs" Inherits="System.Contact" %><%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %><asp:Content ID="Content3" ContentPlaceHolderID="HeadContent" runat="server"><title>Manage Vulnerabilities</title><style type="text/css">
           .cssPager td {
               padding-left: 4px;
               padding-right: 4px;
           }
           .auto-style2 {
               text-align: center;
           }</style></asp:Content><asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent"><asp:ScriptManager ID="ScriptManager1" runat="server" /><asp:UpdateProgress AssociatedUpdatePanelID="upd_Listing" runat="server"><ProgressTemplate><div style="position:relative; vertical-align:middle;"><img src="Images/ajax-loader.gif" alt="Refreshing..." width="48" height="48" /></div></ProgressTemplate></asp:UpdateProgress><%-- Add UpdatePanel here and use DIV tag for Show/Hide --%><h1 class="auto-style2">Manage Vulnerabilities </h1><asp:LinkButton ID="lbAddVuln" runat="server" OnClick="lbAddVuln_Click">Add Vulnerability</asp:LinkButton><br /><br /><asp:UpdatePanel runat="server" ID="upd_Listing" ChildrenAsTriggers="true" UpdateMode="Conditional"><ContentTemplate><asp:Panel ID="pnlVulnList" runat="server" Visible="true"><asp:GridView ID="gv_VulnList" runat="server" AutoGenerateColumns="False" CellPadding="1" DataKeyNames="Id" 
        ForeColor="#333333" Width="100%" AllowPaging="True" OnPageIndexChanging="gv_VulnList_PageIndexChanging"
        HorizontalAlign="Left" CellSpacing="1" ><AlternatingRowStyle BackColor="White" ForeColor="#284775" /><Columns><asp:TemplateField ShowHeader="False" ItemStyle-Width="50px" ItemStyle-Wrap="false"><ItemTemplate><asp:LinkButton ID="HyperLink3" runat="server" CausesValidation="False" CommandArgument='<%# Eval("Id") %>' OnClick="HyperLink3_Click"><img src="Images/edit_page.png" width="25px" height="25px" border="0" alt="Edit/View" /></asp:LinkButton><asp:LinkButton ID="HyperLink4" runat="server" CausesValidation="False" OnClientClick="if ( !confirm('Are you sure you want to delete this vulnerability?')) return false;" CommandArgument='<%# Eval("Id") %>' OnClick="HyperLink4_Click"><img src="Images/delete.jpg" width="25px" height="25px" alt="Delete" border="0" /></asp:LinkButton></ItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Name" SortExpression="Vuln_Name"><ItemTemplate><asp:Label ID="Label2" runat="server" Text='<%# Bind("Vuln_Name") %>'></asp:Label></ItemTemplate><ItemStyle Width="150px" Wrap="False" /></asp:TemplateField><asp:TemplateField HeaderText="Summary" SortExpression="Vuln_Short_Descr"><ItemTemplate><asp:Label ID="Label3" runat="server" Text='<%# Bind("Vuln_Short_Descr") %>'></asp:Label></ItemTemplate><ItemStyle Width="150px" /></asp:TemplateField><asp:TemplateField HeaderText="Description" SortExpression="Vuln_Long_Descr" Visible="False"><ItemTemplate><asp:Label ID="Label4" runat="server" Text='<%# Bind("Vuln_Long_Descr") %>'></asp:Label></ItemTemplate><ItemStyle Width="200px" /></asp:TemplateField><asp:TemplateField HeaderText="" SortExpression="Vuln_Reference" ItemStyle-HorizontalAlign="Right"><ItemTemplate><asp:HyperLink ID="lnkReference" runat="server" NavigateUrl='<%# Bind("Vuln_Reference") %>' Target="_blank"><asp:Image runat="server" ImageUrl="~/images/www.png" Width="25px" Height="25px" BorderStyle="None" /></asp:HyperLink></ItemTemplate><ItemStyle Width="50px" HorizontalAlign="Center" VerticalAlign="Top" /></asp:TemplateField><asp:TemplateField HeaderText="Notes" SortExpression="Vuln_Notes" Visible="False"><ItemTemplate><asp:HyperLink runat="server" NavigateUrl='<%# Eval("Vuln_Notes") %>'></asp:HyperLink> </ItemTemplate><ItemStyle Width="250px" /></asp:TemplateField></Columns><FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /><HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /><PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" CssClass="cssPager" /><RowStyle BackColor="#F7F6F3" ForeColor="#333333" HorizontalAlign="Left" VerticalAlign="Top" Font-Size="Small" /><SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" /><SortedAscendingCellStyle BackColor="#E9E7E2" /><SortedAscendingHeaderStyle BackColor="#506C8C" /><SortedDescendingCellStyle BackColor="#FFFDF8" /><SortedDescendingHeaderStyle BackColor="#6F8DAE" /></asp:GridView></asp:Panel></ContentTemplate></asp:UpdatePanel><asp:UpdateProgress AssociatedUpdatePanelID="upd_AddVuln" runat="server"><ProgressTemplate><div style="position:relative; vertical-align:middle;"><img src="Images/ajax-loader.gif" alt="Refreshing..." width="48" height="48" /></div></ProgressTemplate></asp:UpdateProgress><%-- Add UpdatePanel here and use DIV tag for Show/Hide --%><asp:UpdatePanel runat="server" ID="upd_AddVuln" ChildrenAsTriggers="true" UpdateMode="Conditional"><ContentTemplate><asp:Panel ID="pnl_AddVuln" runat="server" Visible="false"><asp:DetailsView ID="dv_AddVuln" runat="server" Height="50px" Width="673px" AutoGenerateRows="False" DefaultMode="Insert" ><Fields><asp:TemplateField HeaderText="Name" SortExpression="Vuln_Name"><InsertItemTemplate><asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Vuln_Name") %>' Width="640px"></asp:TextBox></InsertItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Summary" SortExpression="Vuln_Short_Descr"><InsertItemTemplate><asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Vuln_Short_Descr") %>' Width="640px"></asp:TextBox></InsertItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Details" SortExpression="Vuln_Long_Descr"><InsertItemTemplate><asp:TextBox ID="TextBox3" runat="server" Rows="5" Text='<%# Bind("Vuln_Long_Descr") %>' TextMode="MultiLine" Width="640px"></asp:TextBox></InsertItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Reference" SortExpression="Vuln_Reference"><InsertItemTemplate><asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Vuln_Reference") %>' Width="640px"></asp:TextBox></InsertItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Notes" SortExpression="Vuln_Notes"><InsertItemTemplate><asp:TextBox ID="TextBox5" runat="server" Rows="5" Text='<%# Bind("Vuln_Notes") %>' TextMode="MultiLine" Width="640px"></asp:TextBox></InsertItemTemplate></asp:TemplateField><asp:TemplateField><InsertItemTemplate><asp:LinkButton ID="lnkInsertVuln" Text="Insert" runat="server" OnClick="btnInsertVuln_Click"><img src="Images/insert.jpg" width="25px" height="25px" border="0" alt="Insert"/></asp:LinkButton><asp:LinkButton ID="lnkCancelIns" Text="Cancel" runat="server" OnClick="btnCancelIns_Click"><img src="Images/cancel.jpg" width="25px" height="25px" border="0" alt="Cancel" /></asp:LinkButton></InsertItemTemplate></asp:TemplateField></Fields><InsertRowStyle Wrap="False" HorizontalAlign="Left" VerticalAlign="Top" /></asp:DetailsView></asp:Panel></ContentTemplate></asp:UpdatePanel><asp:UpdateProgress AssociatedUpdatePanelID="upd_EditVuln" runat="server"><ProgressTemplate><div style="position:relative; vertical-align:middle;"><img src="Images/ajax-loader.gif" alt="Refreshing..." width="48" height="48" /></div></ProgressTemplate></asp:UpdateProgress><asp:UpdatePanel ID="upd_EditVuln" runat="server"><ContentTemplate><asp:Panel ID="pnlUpdate" runat="server" Visible="false"><asp:DetailsView ID="dv_UpdVuln" runat="server" 
            AutoGenerateRows="False" DefaultMode="Edit" Width="683px" DataKeyNames="Id" ><EditRowStyle VerticalAlign="Top" /><Fields><asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" ReadOnly="True" SortExpression="Id" /><asp:TemplateField HeaderText="Name" SortExpression="Vuln_Name"><EditItemTemplate><asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Vuln_Name") %>' Width="100%"></asp:TextBox></EditItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Summary" SortExpression="Vuln_Short_Descr"><EditItemTemplate><asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Vuln_Short_Descr") %>' Width="50%"></asp:TextBox></EditItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Details" SortExpression="Vuln_Long_Descr"><EditItemTemplate><asp:TextBox ID="TextBox3" runat="server" Rows="4" Text='<%# Bind("Vuln_Long_Descr") %>' TextMode="MultiLine" Width="100%"></asp:TextBox></EditItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Reference" SortExpression="Vuln_Reference"><EditItemTemplate><asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Vuln_Reference") %>' Width="100%"></asp:TextBox></EditItemTemplate></asp:TemplateField><asp:TemplateField HeaderText="Notes" SortExpression="Vuln_Notes"><EditItemTemplate><asp:TextBox ID="TextBox5" runat="server" Rows="5" Text='<%# Bind("Vuln_Notes") %>' TextMode="MultiLine" Width="100%"></asp:TextBox></EditItemTemplate></asp:TemplateField><asp:TemplateField ShowHeader="False"><EditItemTemplate><asp:LinkButton ID="lnkUpdate" runat="server" CausesValidation="True" OnClick="LinkButton1_Click" Text="Update" CommandArgument='<%# Eval("Id") %>'><img src="images/update.png" width="50px" height="50px" /></asp:LinkButton>&nbsp;<asp:LinkButton ID="lnkUpdCancel" runat="server" CausesValidation="False" OnClick="LinkButton2_Click1" Text="Cancel"><img src="images/cancel.jpg" width="50px" height="50px" /></asp:LinkButton></EditItemTemplate></asp:TemplateField></Fields></asp:DetailsView></asp:Panel></ContentTemplate></asp:UpdatePanel></asp:Content>

aspx.cs

using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WASAuditSystem
{
    #region Initial Page Loading
    public partial class Contact : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Page.IsPostBack)
            {
                FillGV();
            }
            if (!Page.IsPostBack)
            {
                FillGV();
            }
        }
        #endregion

        #region Gridview and DetailViews

        protected void gv_VulnList_PageIndexChanging (object Sender, GridViewPageEventArgs e)
        {
            gv_VulnList.PageIndex = e.NewPageIndex;
            gv_VulnList.DataBind();
        }
        protected void lbAddVuln_Click(object sender, EventArgs e)
        {
            // AddVuln visible
            pnlVulnList.Visible = false;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = true;
        }

        protected void LinkButton1_Click1(object sender, EventArgs e)
        {
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;
            //gv_VulnList visible
        }

        protected void LinkButton2_Click(object sender, EventArgs e)
        {
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;
            //gv_VulnList visible
        }

        protected void LinkButton3_Click(object sender, EventArgs e)
        {
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;
            //gv_VulnList visible
        }

        protected void LinkButton4_Click(object sender, EventArgs e)
        {
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;
            //gv_VulnList visible
        }

        protected void btnInsertVuln_Click(object sender, EventArgs e)
        {
            InsertData();
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;

            //gv_VulnList visible
        }

        protected void btnCancelIns_Click(object sender, EventArgs e)
        {
            //gv_VulnList visible
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;

        }

        protected void HyperLink3_Click(object sender, EventArgs e)
        {
            LinkButton btn = (LinkButton)(sender);
            string RecID = btn.CommandArgument;

            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string SelQuery = "SELECT * FROM Vulnerabilities where Id = @Id ORDER BY Vuln_Name";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(SelQuery, conn);
            cmd.Parameters.AddWithValue("Id", RecID);

            SqlDataAdapter sqlDa = new SqlDataAdapter(cmd);
            DataTable sqlDt = new DataTable();
            sqlDa.Fill(sqlDt);

            dv_UpdVuln.DataSource = sqlDt;
            dv_UpdVuln.DataBind();

            // dv_Update Visible
            pnlVulnList.Visible = false;
            pnlUpdate.Visible = true;
            pnl_AddVuln.Visible = false;

        }

        protected void LinkButton2_Click1(object sender, EventArgs e)
        {
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;

            //gv_VulnList visible
        }

        protected void LinkButton1_Click(object sender, EventArgs e)
        {
            LinkButton btn = (LinkButton)(sender);
            string RecID = btn.CommandArgument;

            UpdateData(Convert.ToInt32(RecID));
            pnlVulnList.Visible = true;
            pnlUpdate.Visible = false;
            pnl_AddVuln.Visible = false;

            //gv_VulnList visible
        }

        protected void HyperLink4_Click(object sender, EventArgs e)
        {
            LinkButton btn = (LinkButton)(sender);
            string RecID = btn.CommandArgument;
            DeleteData(Convert.ToInt32(RecID));
        }
        #endregion

        #region DataWorks
        protected void UpdateData(int id)
        {
            TextBox VulnName = ((TextBox)dv_UpdVuln.FindControl("TextBox1"));
            TextBox VulnShort = ((TextBox)dv_UpdVuln.FindControl("TextBox2"));
            TextBox VulnLong = ((TextBox)dv_UpdVuln.FindControl("TextBox3"));
            TextBox VulnRef = ((TextBox)dv_UpdVuln.FindControl("TextBox4"));
            TextBox VulnNotes = ((TextBox)dv_UpdVuln.FindControl("TextBox5"));

            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string UpdQuery = "UPDATE Vulnerabilities SET Vuln_Name = @Vuln_Name, Vuln_Short_Descr = @Vuln_Short_Descr, Vuln_Long_Descr = @Vuln_Long_Descr, Vuln_Reference = @Vuln_Reference, Vuln_Notes = @Vuln_Notes WHERE (Id = @Id)";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(UpdQuery, conn);

            cmd.Parameters.AddWithValue("Id", id);
            cmd.Parameters.AddWithValue("Vuln_Name", VulnName.Text.ToString());
            cmd.Parameters.AddWithValue("Vuln_Short_Descr", VulnShort.Text.ToString());
            cmd.Parameters.AddWithValue("Vuln_Long_Descr", VulnLong.Text.ToString());
            cmd.Parameters.AddWithValue("Vuln_Reference", VulnRef.Text.ToString());
            cmd.Parameters.AddWithValue("Vuln_Notes", VulnNotes.Text.ToString());

            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();
            FillGV();
        }

        protected void InsertData()
        {
            TextBox VulnName = ((TextBox)dv_AddVuln.FindControl("TextBox1"));
            TextBox VulnShort = ((TextBox)dv_AddVuln.FindControl("TextBox2"));
            TextBox VulnLong = ((TextBox)dv_AddVuln.FindControl("TextBox3"));
            TextBox VulnRef = ((TextBox)dv_AddVuln.FindControl("TextBox4"));
            TextBox VulnNotes = ((TextBox)dv_AddVuln.FindControl("TextBox5"));


            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string InsQuery = "INSERT INTO Vulnerabilities (Vuln_Name,Vuln_Short_Descr,Vuln_Long_Descr,Vuln_Reference,Vuln_Notes) values (@VulnName,@VulnShort,@VulnLong,@VulnRef,@VulnNotes)";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(InsQuery, conn);

            cmd.Parameters.AddWithValue("VulnName", VulnName.Text.ToString());
            cmd.Parameters.AddWithValue("VulnShort", VulnShort.Text.ToString());
            cmd.Parameters.AddWithValue("VulnLong", VulnLong.Text.ToString());
            cmd.Parameters.AddWithValue("VulnRef", VulnRef.Text.ToString());
            cmd.Parameters.AddWithValue("VulnNotes", VulnNotes.Text.ToString());

            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();
            FillGV();
        }

        protected void DeleteData(int id)
        {
            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string DelQuery = "DELETE FROM Vulnerabilities where Id = @Id";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(DelQuery, conn);
            cmd.Parameters.AddWithValue("Id", id);
            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();
            FillGV();
        }

        protected void FillGV()
        {
            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string SelQuery = "SELECT * FROM Vulnerabilities ORDER BY Vuln_Name";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(SelQuery, conn);

            SqlDataAdapter sqlDa = new SqlDataAdapter(cmd);
            DataTable sqlDt = new DataTable();
            sqlDa.Fill(sqlDt);

            gv_VulnList.DataSource = sqlDt;
            gv_VulnList.DataBind();
        }

        protected void FillEditDV(object sender, EventArgs e)
        {
            LinkButton btn = (LinkButton)(sender);
            string RecID = btn.CommandArgument;

            string ConnStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;
            string SelQuery = "SELECT * FROM Vulnerabilities where Id = @Id";

            SqlConnection conn = new SqlConnection(ConnStr);
            SqlCommand cmd = new SqlCommand(SelQuery, conn);
            cmd.Parameters.AddWithValue("Id", RecID);

            SqlDataAdapter sqlDa = new SqlDataAdapter(cmd);
            DataTable sqlDt = new DataTable();
            sqlDa.Fill(sqlDt);

            dv_UpdVuln.DataSource = sqlDt;
            dv_UpdVuln.DataBind();
        }
        #endregion
    }
}