Problem with login status control

Hi,

I am using the login status control in my master page.. My login control is a web custom control which i have created. When a user logs in i have redirected user to home.aspx. But it is not navigating/redirecting user to home.aspx... i have attached the code. plzz go throu and let me know where i have made a mistake..

MASTER PAGE :
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>





 
 
 


 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

[Project title/image can be placed here]
Home                   New User? Register

 
 

 

=================================================================================
WEB USER CONTROL:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="login.ascx.cs" Inherits="login" %>

Existing users login

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

UserName:		ErrorMessage="*" ControlToValidate="txtuser">
Password:		ErrorMessage="*" ControlToValidate="txtpassword">

=========================================================================================
CODE BEHIND FOR WEB USER CONTROL:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class login : System.Web.UI.UserControl
{
  protected void Page_Load(object sender, EventArgs e)
  {

  }
  protected void imglogin_Click(object sender, ImageClickEventArgs e)
  {
  //try
  //{
  SqlConnection CON = new SqlConnection(ConfigurationManager.ConnectionStrings["ProjectTrackingConnectionString"].ConnectionString);
  CON.Open();
  SqlCommand cmd = new SqlCommand("select UserName,Password from login_master", CON);
  SqlDataReader dtr;
  dtr = cmd.ExecuteReader();
  while (dtr.Read())
  {
  if ((dtr["UserName"].ToString() == txtuser.Text) && (dtr["Password"].ToString() == base64Decode(txtpassword.Text)))
  {

  Session["user"] = txtuser.Text;
  Response.Redirect("home.aspx");
  }
  else
  {
  lblmsg.Text = "Invalid UserName/Password!";
  }
  }
  dtr.Close();
  CON.Close();
  //}
  //catch ()
  //{
 
  //}
 
 


  }
  public string base64Decode(string sData)
  {


  System.Text.UTF8Encoding encoder = new System.Text.UTF8Encoding();

  System.Text.Decoder utf8Decode = encoder.GetDecoder();

  byte[] todecode_byte = Convert.FromBase64String(sData);

  int charCount = utf8Decode.GetCharCount(todecode_byte, 0, todecode_byte.Length);

  char[] decoded_char = new char[charCount];

  utf8Decode.GetChars(todecode_byte, 0, todecode_byte.Length, decoded_char, 0);

  string result = new String(decoded_char);

  return result;

  }
}