protected void btnUpdate_Click(object sender, EventArgs e)
 {
     if (IsValid)
     {
         if (txbPassword.Text != "" & txbUsername.Text != "")
         {
             string status = UpdateUserDAO.UpdateUser(txbUsername.Text.ToUpper(), txbPassword.Text);
             if (status == null)
             {
                 lblInvalid.ForeColor = System.Drawing.Color.Red;
                 lblInvalid.Text      = "No UserName found";
                 lblInvalid.Visible   = true;
             }
             else
             {
                 lblInvalid.Text      = "Password Updated for user";
                 lblInvalid.Visible   = true;
                 lblInvalid.ForeColor = System.Drawing.Color.Green;
             }
         }
     }
 }