Need to display User today task popup

Hi all,

My issue is not solving still..As Lokesh suggested me i have changed everything, but no data is passing into Modularpop window. I am unable to dispaly screenshot here otherwise i would shown the screenshot it would be helpful to understand.

My issue is When an user login( I provided Session for Username) he need to get a popup window showing Today Task.

Is it possible to get data using Session from database. I am posting my source code and C# code once check and let me know. Here i am not using any default.aspx page.

Source Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Loginpage.aspx.cs" Inherits="Loginpage" %>  <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>     xmlns="http://www.w3.org/1999/xhtml">  runat="server">         <%-- <script type="text/javascript">         var popup;         function showModalPopUp() {             popup = window.open("Default.aspx", "Popup", "width=300,height=350");             popup.focus();         } script>--%>      type="text/css">         .modalBackground         {             background-color:Black;             filter:alpha(opacity=90);             opacity:0.8;         }         .modalPopup         {             background-color:#FFFFFF;            border-width:3px;            border-style:solid;            border-color:Black;            padding-top:10px;            padding-left:10px;            width:300px;            height:300px;         }          #form1         {             font-weight: 700;         }                  id="form1" runat="server">          />           align="center" style="font-size: x-large; color: #0099FF">      ID="lblSignin" runat="server" Text="Sign In">

/> align="center"> ID="txtusername" runat="server" Height="22px" Width="174px" ValidationGroup="SignIn"> ID="RequiredFieldValidatorUN" runat="server" ValidationGroup="SignIn" ErrorMessage="Enter Username" ControlToValidate="txtusername" Display="None" ForeColor="Red">

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; using System.Data; using System.Configuration; public partial class Loginpage : System.Web.UI.Page { string connStr = ConfigurationManager.ConnectionStrings["NewTaskConnectionString"].ConnectionString; SqlCommand com; //SqlDataAdapter sqlda; //DataSet ds; string str; protected void Page_Load(object sender, EventArgs e) { } protected void btnNewUser_Click(object sender, EventArgs e) { Response.Redirect("Registration.aspx"); } protected void ButtonMe_Click1(object sender, EventArgs e) { SqlConnection con = new SqlConnection(connStr); con.Open(); str = "select * from Task where Userid='" + TextBox1.Text.Trim() + "'"; com = new SqlCommand(str, con); SqlDataReader reader = com.ExecuteReader(); if (reader.Read()) { txtName.Text = reader["TaskName"].ToString(); txtdescription.Text = reader["TaskDescription"].ToString(); txtAssign.Text = reader["Assignedto"].ToString(); txtdate.Text = reader["Taskdate"].ToString(); drpdwnhr.SelectedValue = reader["Starttime"].ToString(); DropDownListhr.SelectedValue = reader["Endtime"].ToString(); txthours.Text = reader["Taskhours"].ToString(); Priority.SelectedValue = reader["Priority"].ToString(); reader.Close(); con.Close(); ModalPopupExtender1.Show(); } } }