Develop Reference

Page Loading Multiple times

Having a unusual problem with an application I'm building, so what I'm looking to do is a user can view preview of their adverts they have created, click the advert which is a dynamic link and be brought to a new page which will show the advert in more detail. The more detail page is then runs a to check the query string, pass the parameters of the query sting to a method which pulls the correct details form the database. This part works perfectly, but when the object is returned the pages loads again, calls the same method 3 times, but with null parameters which in returns a null reference to an object that doesn't exist.
I've tried to refactor the code so when a page loads it won't retrieve form the database unless the search parameters are valid. When the page loads, components won't work then, for example the Image Carousel.
I've tried hard coding the parameters into the method, will work perfectly. will only load once.
I've created two new pages which do not inherit form a master page and used the exact same methods. works perfectly. I tried the method on a two different pages that are inherited form the master page and same problem.
Detailed Page.aspx
<%# Page Title="" Language="C#" MasterPageFile="~/MasterPage.Master" AutoEventWireup="true" CodeFile="DetailAdvert.aspx.cs" Inherits="Lenders.ie.DetailAdvert" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<div class="col-lg-9">
<div class="container">
<div class="row">
<!--Advert Image -->
<div class="container">
<div class="row">
<!-- Carosel goes here -->
<div class="row carousel-holder">
<div class="col-xs-12 col-sm-12 col-md-12 col-lg-10">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="item active">
<img class="slide-image" id="Img1" runat="server" src="http://placehold.it/800x380" alt=""/>
</div>
<div class="item">
<img class="slide-image" id="Img2" runat="server" src="http://placehold.it/800x380" alt=""/>
</div>
<div class="item">
<img class="slide-image" id="Img3" runat="server" src="http://placehold.it/800x380" alt=""/>
</div>
</div>
<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
</a>
</div>
</div>
</div>
</div>
</div>
<!--User Details-->
<br />
<div class="container">
<div class="row">
<!-- Descriptin and profile view -->
<div class="col-xs-12 col-sm-6 col-md-6 col-lg-5">
<div class="well well-sm">
<div class="row">
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
<img src="" runat="server" id="imgProfilePic" alt="" class="img-rounded img-responsive" />
</div>
<div class="col-xs-4 col-sm-4 col-md-4 col-lg-4">
<h4>
<asp:Label ID="lblFristName" runat="server" Text=""></asp:Label>
<asp:Label ID="lblSecondName" runat="server" Text=""></asp:Label>
</h4>
<small><cite title="Location"><asp:Label ID="lblLocation" runat="server" Text=""></asp:Label> <i class="glyphicon glyphicon-map-marker">
</i></cite></small>
<p>
<i title="Email" class="glyphicon glyphicon-envelope"></i> <asp:Label ID="lblEmail" runat="server" Text=""></asp:Label>
<br />
<i title="Join Date" class="glyphicon glyphicon-user"></i> <asp:Label ID="lblJoinDate" runat="server" Text=""></asp:Label><br />
<i title="User Rating" class="glyphicon glyphicon-stats"> </i><asp:Label ID="lblUserRating" runat="server" Text=""></asp:Label><br />
<i title="Contact Number" class="glyphicon glyphicon-phone"> </i><asp:Label ID="lblContactNumber" runat="server" Text=""></asp:Label>
</p>
<!-- Split button -->
<asp:Button ID="btnMessage" runat="server" Text="Message" CssClass="btn btn-success" />
</div>
</div>
</div>
</div>
<!-- Description / Product Details-->
<div class="col-xs-12 col-sm-6 col-md-6 col-lg-5">
<div class="well well-sm">
<h4> Description: </h4>
<p>
<asp:Label ID="lblDesc" runat="server" Text=""></asp:Label>
</p>
</div>
</div>
</div>
</div>
<div class="container">
<div class="row">
<!-- Comment Section -->
<div class="col-xs-12 col-sm-12 col-md-12 col-lg-10">
<div class="well well-sm">
<h4>Comments</h4>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" runat="server">
</asp:Content>
Detailed Aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using BLL;
using DataModels;
namespace Lenders.ie
{
public partial class DetailAdvert : System.Web.UI.Page
{
public Advert_User ReturnedUserAdvet = new Advert_User();
public BalAdvertManger BALMan = new BalAdvertManger();
protected void Page_Load(object sender, EventArgs e)
{
//Response.Cache.SetCacheability(HttpCacheability.NoCache);
//Response.ExpiresAbsolute = DateTime.Now.AddMonths(-1);
//GetData();
//PopulatePage();
//int UserID = Convert.ToInt32(Request.QueryString["UiD"]);
//int AdvertID = Convert.ToInt32(Request.QueryString["AdID"]);
if (!Page.IsPostBack)
{
GetData();
}
}
public void GetData()
{
//int UserID = 41;
//int AdvertID = 2;
int UserID = Convert.ToInt16(Request.QueryString["UiD"]);
int AdvertID = Convert.ToInt16(Request.QueryString["AdID"]);
if (UserID != 0 || AdvertID != 0)
{
ReturnedUserAdvet = BALMan.ReturnDetailedAdvert(UserID, AdvertID);
PopulatePage();
}
//int UserID = Convert.ToInt32(Request.QueryString["UiD"]);
//int AdvertID = Convert.ToInt32(Request.QueryString["AdID"]);
//int UserID = 41;
//int AdvertID = 2;
//ReturnedUserAdvet = BALMan.ReturnDetailedAdvert(UserID,AdvertID);
}
public void PopulatePage()
{
}
}
}
This is where the link is and directs to the Detailed page.
Profile Page.aspx
<%# Page Title="" Language="C#" EnableEventValidation="false" MasterPageFile="~/MasterPage.Master" AutoEventWireup="true" CodeBehind="ProfilePage.aspx.cs" Inherits="Lenders.ie.ProfilePage1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<div class="container">
<div class="row">
<%-- Adverts View--%>
<asp:View ID="AdvertsView" runat="server">
<h2>Adverts</h2>
</asp:View>
<%-- View Adverts --%>
<asp:View ID="View_ViewAdverts" runat="server">
<h2>View Adverts</h2>
<div class="row">
<asp:Literal ID="Advert1" runat="server"></asp:Literal>
<asp:LinkButton ID="LinkButton1" OnClick="LinkButton1_Click" runat="server">LinkButton</asp:LinkButton>
</div>
</asp:View>
<%--There was three closing divs here--%>
<asp:View ID="MessageView" runat="server">
<h2>Messages</h2>
</asp:View>
</asp:MultiView>
</div>
</div>
</div>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" runat="server">
ProfilePage aspx.cs - Method that creates the link
public void DisplayUserAdverts()
{
int UserID = Convert.ToInt32(Session["UserID"]);
int i = 0;
ListOfUserAdverts = BalAdvertManager.ReturnUserAdvert(UserID);
StringWriter stringWriter = new StringWriter();
using (HtmlTextWriter writer = new HtmlTextWriter(stringWriter))
{
foreach (Advert item in ListOfUserAdverts)
{
string ColDiv = "col-sm-4 col-lg-4 col-md-4";
string ThumbClass = "thumbnail";
string Image = "AdvertThumbnails/" + item.Img1.ToString();
string Caption = "caption";
string Link = "DetailAdvert.aspx/?AdID=" + item.AdvertID.ToString() + "&UiD=" + item.UserID.ToString();
Button btn = new Button();
writer.AddAttribute(HtmlTextWriterAttribute.Class, ColDiv);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.AddAttribute(HtmlTextWriterAttribute.Class, ThumbClass);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
//writer.AddAttribute(HtmlTextWriterAttribute.Src, Image);
writer.AddAttribute(HtmlTextWriterAttribute.Href, Link);
writer.RenderBeginTag(HtmlTextWriterTag.A);
writer.AddAttribute(HtmlTextWriterAttribute.Src, Image);
writer.RenderBeginTag(HtmlTextWriterTag.Img);
writer.RenderEndTag();
writer.RenderEndTag();
writer.AddAttribute(HtmlTextWriterAttribute.Class, Caption);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
//writer.AddAttribute(HtmlTextWriterAttribute.Src, Image);
//writer.RenderBeginTag(HtmlTextWriterTag.Div);
//writer.AddAttribute(HtmlTextWriterAttribute.Class, Caption);
writer.RenderBeginTag("h4");
writer.Write(item.Title.ToString());
writer.RenderEndTag();
writer.RenderBeginTag("p");
//Does Something
writer.Write(item.Desc.ToString().Substring(0, 50));
writer.Write("</br>");
writer.Write("Testing" + i.ToString());
writer.Write("</br>");
this.Controls.Add(btn);
writer.AddAttribute(HtmlTextWriterAttribute.Href, Link);
// writer.AddAttribute(HtmlTextWriterAttribute.Id);
writer.RenderBeginTag(HtmlTextWriterTag.A);
writer.Write("Link");
writer.RenderEndTag();
writer.RenderEndTag();
//writer.WriteBeginTag("p");
// // Does Something
//writer.WriteEndTag("p");
writer.RenderEndTag();
writer.RenderEndTag();
writer.RenderEndTag();
i++;
}
}
Advert1.Text = stringWriter.ToString();
}
Master Page.aspx
<%# Master Language="C#" AutoEventWireup="true" CodeBehind="MasterPage.master.cs" Inherits="Lenders.ie.MasterPage" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Shop Homepage - Start Bootstrap Template</title>
<!-- Bootstrap Core Content -->
<link href="Content/bootstrap.min.css" rel="stylesheet">
<!-- Custom CSS -->
<link href="Content/shop-homepage.css" rel="stylesheet">
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<form id="form1" runat="server">
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<%-- <a class="navbar-brand" href="www.google.com">
</a>--%>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li>
<asp:HyperLink ID="Home" runat="server">Home</asp:HyperLink>
</li>
<li>
<asp:HyperLink ID="Services" runat="server">Services</asp:HyperLink>
</li>
<li>
<asp:HyperLink ID="Contact" runat="server">Contact</asp:HyperLink>
</li>
<li>
<asp:HyperLink ID="Login" runat="server">Log In</asp:HyperLink>
</li>
</ul>
<div class="navbar-form navbar-right">
<div class="input-group input-sm">
<asp:TextBox ID="txtSearch" runat="server" CssClass="form-control form-control-sm " AutoPostBack="true"></asp:TextBox>
<span class="
</span>
</div>
</div>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container -->
</nav>
<div class="container">
<div class="row">
<div class="col-md-3">
<p class="lead">Shop Name</p>
<div class="list-group">
<asp:HyperLink ID="HyperLink1" CssClass="list-group-item" runat="server">Sports</asp:HyperLink>
<asp:HyperLink ID="HyperLink2" CssClass="list-group-item" runat="server">Hobbies</asp:HyperLink>
<asp:HyperLink ID="HyperLink3" CssClass="list-group-item" runat="server">Life Style</asp:HyperLink>
<asp:HyperLink ID="HyperLink4" CssClass="list-group-item" runat="server">Another Example</asp:HyperLink>
<asp:HyperLink ID="HyperLink5" CssClass="list-group-item" runat="server"> Blah </asp:HyperLink>
</div>
</div>
<%-- <div class="col-md-9">
<div class="row carousel-holder">
<div class="col-md-12">--%>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
<asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>
<%-- </div>
</div>
</div>--%>
<div class="container">
<hr>
<!-- Footer -->
<footer>
<div class="row">
<div class="col-lg-12">
<p>Copyright © Your Website 2014</p>
</div>
</div>
</footer>
</div>
<!-- /.container -->
<!-- jQuery -->
<script src="js/jquery.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="js/bootstrap.min.js"></script>enter code here
</form>
</body>
</html>
Master Page.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Lenders.ie
{
public partial class MasterPage : System.Web.UI.MasterPage
{
protected void Page_Load(object sender, EventArgs e)
{
}
}
}

Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.TextBox' Error

I'm getting this error, but I just can't tell where it might be coming from. The line that the error page is referencing is:
# Page Title="" Language="C#" MasterPageFile="~/CV.Master" AutoEventWireup="true" CodeBehind="AddPost.aspx.cs" Inherits="CV_Blog_WDW.AddPost"
But I can't see how that line can cause that error? Unless there's something I'm missing?
My .aspx code is:
<%# Page Title="" Language="C#" MasterPageFile="~/CV.Master" AutoEventWireup="true" CodeBehind="AddPost.aspx.cs" Inherits="CV_Blog_WDW.AddPost" %>
<asp:Content ID="Content1"
ContentPlaceHolderID="ContentPlaceHolder1"
runat="server">
<!-- =========
Special Nav for BLog page
===================================-->
<nav class="nav-blog">
<a href="default.aspx"
class="btn btn-left"
data-toggle="tooltip"
data-placement="left"
title=""
data-original-title="Home">
<i class="fa fa-home"></i>
</a>
<a href="#"
class="btn btn-big-blog">Blog</a>
<a href="#"
class="btn btn-right"
data-toggle="tooltip"
data-placement="right"
title=""
data-original-title="Reload Page">
<i class="fa fa-refresh"></i>
</a>
</nav>
<!-- =========
Start Show Yor Name Section
===================================-->
</div>
</header>
<!-- =========
End portrait section
===================================-->
<!-- =========
Start Content section
===================================-->
<section class="content open"
id="main-content">
<div class="body-content"
id="blog">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="blog-posts">
<div class="blog-post">
<h3 class="title with-icon">
<span class="fa fa-comment-o icn-title"></span> Add A Post
</h3>
<div class="box-block">
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="Title">Title</label>
<asp:TextBox ID="Title"
runat="server"
CssClass="form-control"></asp:TextBox>
</div>
<div class="form-group">
<label for="FeaturedImage">Featured Image</label>
<asp:FileUpload ID="FeaturedImage"
runat="server"
CssClass="form-control" />
</div>
</div>
</div>
<div class="form-group">
<label for="MesageForm">Body</label>
<asp:TextBox ID="Body"
TextMode="MultiLine"
Rows="8"
runat="server"
CssClass="form-control"></asp:TextBox>
</div>
<asp:Button id="btnAdd"
runat="server"
CssClass="btn btn-flat btn-lg"
Text="Add Post"
OnClick="btnAdd_Click" />
</div>
</div>
</div>
</div>
</div>
</div>
</asp:Content>
And my code behind is:
public partial class AddPost : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnAdd_Click(object sender, EventArgs e)
{
if(FeaturedImage.HasFile)
{
try
{
string filename = Path.GetFileName(FeaturedImage.FileName);
FeaturedImage.SaveAs(Server.MapPath("~/assets/images/blog/") + filename);
}
catch(Exception ex)
{
string error = ex.Message;
}
}
try
{
string connection = WebConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection con = new SqlConnection(connection);
SqlCommand cmd = new SqlCommand("AddPost", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#Title", Title.Text);
cmd.Parameters.AddWithValue("#Date", DateTime.Now);
cmd.Parameters.AddWithValue("#FeatureImage", Path.GetFileName(FeaturedImage.FileName));
cmd.Parameters.AddWithValue("#PostedBy", 1);
cmd.Parameters.AddWithValue("#Body", Body.Text);
con.Open();
cmd.ExecuteNonQuery();
}
catch(Exception ex)
{
}
}
}
I've google'ed the error but there's nothing that seems relevant to my code? Really stumped on this one, not been able to try any fixes as to be honest not sure where to start. As far as I can see I'm not making a conversion, but maybe there's one going on that I'm, not aware of?

The error comes from assigning a string to a TextBox variable. The usual reason is that one forgets the Text property, and use something like:
MyTextbox = "Some string";
intead of:
MyTextbox.Text = "Some string";
However, as there is no such code in your methods, and because the error message points to the aspx page, the error is somewhere in the code that is generated from the markup.
You have a text box named Title. There is already a string property by that name in the Page class, and when the generated code tries to set the string property, the assigment will use the TextBox field instead as it shadows the string property.
Rename the Title text box to something that isn't used already.

Selected Index Changed event not firing both Autopostback property

In my Dropdownlist Selected index change event not firing.Here i use auto post back true &
View state also true.But Selected Index Changed Event not firing
My Code
<%# Page Language="C#" AutoEventWireup="true" CodeFile="AdminEagleViewLogin.aspx.cs" Inherits="AdminEagleViewLogin" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<style>
body{padding-top:20px;}
</style>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div class="container">
<div class="row">
User : <asp:DropDownList ID="drpusr" runat="server" Visible="true" OnSelectedIndexChanged="drpusr_SelectedIndexChanged" AutoPostBack="true" EnableViewState="true" ></asp:DropDownList>
Password: <asp:Label ID="lbluserpw" runat="server"></asp:Label>
<div class="col-md-4 col-md-offset-4">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Please sign in</h3>
</div>
<div class="panel-body">
<form accept-charset="UTF-8" role="form">
<fieldset>
<div class="form-group">
<asp:TextBox ID="txtusr" runat="server"></asp:TextBox>
</div>
<div class="form-group">
<asp:TextBox ID="txtpw" runat="server" TextMode="Password"></asp:TextBox>
</div>
<div class="checkbox">
<label>
<input name="remember" type="checkbox" value="Remember Me"> Remember Me
</label>
</div>
<asp:CheckBox ID="chkremember" runat="server" Visible="false" class="remchkbox" />
<asp:Button ID="submit" runat="server" class="btn btn-lg btn-success btn-block" Text="Submit" OnClick="submit_Click" />
</fieldset>
</form>
</div>
</div>
</div>
</div>
</div>
</form>
</body>
</html>
ServerSide
User bind to Dropdown is working.
public partial class AdminEagleViewLogin : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
BindUsers();
//lbluserpw.Text = Membership.Provider.GetPassword(drpusr.SelectedValue, String.Empty);
}
protected void submit_Click(object sender, EventArgs e)
{
if (Membership.ValidateUser(txtusr.Text, txtpw.Text))
{
FormsAuthentication.SetAuthCookie(txtusr.Text, chkremember.Checked);
string[] CurrentUserRole = Roles.GetRolesForUser(txtusr.Text);
var admin = "Administrator";
var manager = "Manager";
var user = "User";
if (CurrentUserRole.Contains(admin))
{
Response.Redirect("Administrator.aspx");
}
else if (CurrentUserRole.Contains(manager))
{
Response.Redirect("Manager.aspx");
}
else
{
Response.Redirect("UserPage.aspx");
}
}
else
{
Response.Redirect("AdminEagleViewLogin.aspx");
}
}
protected void BindUsers()
{
DataAccess da = new DataAccess();
drpusr.DataSource = da.GetUsers();
drpusr.DataTextField = "UserName";
drpusr.DataValueField = "UserId";
drpusr.DataBind();
drpusr.Items.Insert(0, new ListItem("-- Select User --", "0"));
drpusr.Items.RemoveAt(1);
}
protected void drpusr_SelectedIndexChanged(object sender, EventArgs e)
{
lbluserpw.Text = Membership.Provider.GetPassword(drpusr.SelectedValue, String.Empty);
}
}

Try this:
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
BindUsers();
}
}

You shouldn't put a form element inside another form:
<form accept-charset="UTF-8" role="form">
<fieldset>
...
<asp:Button ID="submit" runat="server" class="btn btn-lg btn-success btn-block" Text="Submit" OnClick="submit_Click" />
</fieldset>
</form>
remove the inner form.
[Update]
Another problem is the "ID" property of the button.
change it to something else, other than "submit".

How to add in session in the javascript code?

Before I add in this part of session code, it will redirect me to BlogEntry.aspx if my username and password is correct. After I add in the session code, when I clicked the button nothing happening. Can you help me convert my session code to work in the javascript? I need to code it in the javascript and not in the code behind because I am using a html button. Because I want the design of the button, I need to do this. Unless you tell me there's a way to do it in the code behind. After login in login.aspx. It will redirect to logined.aspx and display welcome admin in the label.
Login.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
</style>
<link rel="stylesheet" type="text/css" href="stylesheets/loginstyle.css" />
<script language="javascript" type="text/javascript">
// <![CDATA[
function Button1_onclick() {
if (document.getElementById('txtUserName').value == "Admin" && document.getElementById('txtPassword').value == "123") {
//After add in session it cannot redirect START HERE
Session.Add("Username", txtUserName.Value);
Session.Add("Password", txtPassword.Value);
FormsAuthentication.SetAuthCookie(txtUserName.Value, true);
window.location.assign("BlogEntry.aspx")
//After add in session it cannot redirect END HERE
}
else
{
document.getElementById("<%=lblError.ClientID%>").innerHTML = "Name can't be blank!";
}
}
// ]]>
</script>
</head>
<body>
<div id="wrapper">
<form name="login-form" class="login-form" action="" method="post">
<div class="header">
<h1>Login Form</h1>
<span>Fill out the form below to login to my super awesome imaginary control panel.</span>
</div>
<div class="content">
<input name="username" type="text" class="input username" placeholder="Username" runat="server" id="txtUserName" />
<div class="user-icon"></div>
<input name="password" type="password" class="input password" placeholder="Password" runat="server" id="txtPassword" />
<div class="pass-icon"></div>
</div>
<div class="footer">
<input type="button" name="submit" value="Login" class="button" runat="server" id="Button1" önserverclick="Button1_Click" onclick="return Button1_onclick()" />
<asp:Label ID="lblError" runat="server" Text=""></asp:Label>
</div>
</form>
</div>
<div class="gradient"></div>
</body>
</html>
Logined.aspx
protected void Page_Load(object sender, EventArgs e)
{
//Logout.Visible = false;
string memName = (String)Session["UserName"];
lblUsername.Text = String.Concat("Welcome Guest!");
if (Session["Username"] != null && Session["Username"] != String.Empty)
{
lblUsername.Text = "Welcome, " + memName + "!";
}
}
For #Sangram

You can use html session storage or localStorage to store your key values. this will not need any server side code. The info will be there even if the user close the browser.
for browser compatibility: http://www.html5rocks.com/en/features/storage
for example: http://coding.smashingmagazine.com/2010/10/11/local-storage-and-how-to-use-it/

Control does not show up in CodeBehind?

I have my masterpage:
<%# Master Language="C#" AutoEventWireup="true" CodeBehind="KezberProjectManager.master.cs" Inherits="KezberProjectManager.KezberProjectManager" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<!-- Le styles -->
<link href="assets/css/bootstrap.css" rel="stylesheet"/>
<link href="assets/css/bootstrap-responsive.css" rel="stylesheet"/>
<link href="assets/css/kezblu.styles.css" rel="stylesheet"/>
<style type="text/css">
</style>
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.0.min.js"></script>
<script type="text/javascript" src="assets/js/kezcommon.js"></script>
<script type="text/javascript">
$(document).ready
(
function () {
createAutoClosingAlert('.success_alert', 6000);
}
);
function createAutoClosingAlert(selector, delay) {
var alert = $(selector).alert();
window.setTimeout(function () { $(alert).slideUp() }, delay);
}
</script>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<asp:Repeater runat="server" id="MenuRepeater">
<headertemplate>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="#">KezBlu</a>
<div class="nav-collapse collapse">
<ul class="nav">
</headertemplate>
<itemtemplate>
<%# Eval("Content") %>
</itemtemplate>
<footertemplate>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
</footertemplate>
</asp:Repeater>
<div id="wrap">
<div id="content">
<div id="alerts">
<div class="bs-docs-example">
<div id="auth">
<asp:HyperLink id="HyperLink1" runat="server">HyperLink</asp:HyperLink>
</br>
<asp:HyperLink id="HyperLink2" runat="server">HyperLink</asp:HyperLink>
</div>
<div runat="server" id="success_alert" class="success_alert alert alert-success fade in">
<button type="button" class="close" data-dismiss="alert">×</button>
<div runat="server" id="success_alert_text">
</div>
</div>
</div>
<div class="bs-docs-example">
<div runat="server" id="error_alert" class="error_alert alert alert-error fade in">
<button type="button" class="close" data-dismiss="alert">×</button>
<div runat="server" id="error_alert_text">
</div>
</div>
</div>
</div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>
</form>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script type="text/javascript" src="assets/js/bootstrap.min.js"></script>
</body>
</html>
In there I have:
<div id="auth">
<asp:HyperLink id="HyperLink1" runat="server">HyperLink</asp:HyperLink>
</br>
<asp:HyperLink id="HyperLink2" runat="server">HyperLink</asp:HyperLink>
</div>
Like this, the links show up fine in code behind.
Now, if I move them into my repeater's footer:
...
<div class="nav-collapse collapse">
<ul class="nav">
</headertemplate>
<itemtemplate>
<%# Eval("Content") %>
</itemtemplate>
<footertemplate>
</ul>
<div id="auth">
<asp:HyperLink id="HyperLink1" runat="server">HyperLink</asp:HyperLink>
</br>
<asp:HyperLink id="HyperLink2" runat="server">HyperLink</asp:HyperLink>
</div>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
</footertemplate>
</asp:Repeater>
Then they no longer can be used in code behind.
I really really do not understand this.
Why is it not working?

The RepeaterItem has a different NamingContainer. You can access only controls that are on top of the page directly since these controls are created in the partial codebehind class automatically. You have to use FindControl to get the reference of a control in a RepeaterItem.
In this case you could use the Repeater's ItemDataBound event:
protected void Repater1_ItemDataBound(Object Sender, RepeaterItemEventArgs e)
{
// This event is raised for the header, the footer, separators, and items.
if (e.Item.ItemType == ListItemType.Footer)
{
HyperLink hl = (HyperLink)e.Item.FindControl("HyperLink1");
}
}

Because the controls are no longer on the main form they are no longer properties of the Page. They can instead be accessed through the Repeater.
See this question for an example on accessing the controls through the Repeater.

When you are putting objects into Repeaters, Grids, etc, you have to do a lot more processing in the backend to be able to find them. Basically when the repeater is bound, you can go through and search for the object, and then access its properties.
For example here is a link to some code for a repeater looking up the various item controls when an Item is bound
protected void rptTaskListOnItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
{
var lnkEdit = e.Item.FindControl("lnkEdit") as HyperLink;
var lnkDelete = e.Item.FindControl("lnkDelete") as LinkButton;
var pnlAdminControls = e.Item.FindControl("pnlAdmin") as Panel;
var t = (Task)e.Item.DataItem;
if (IsEditable && lnkDelete != null && lnkEdit != null && pnlAdminControls != null)
{
pnlAdminControls.Visible = true;
lnkDelete.CommandArgument = t.TaskId.ToString();
lnkDelete.Enabled = lnkDelete.Visible = lnkEdit.Enabled = lnkEdit.Visible = true;
lnkEdit.NavigateUrl = EditUrl(string.Empty, string.Empty, "Edit", "tid=" + t.TaskId);
ClientAPI.AddButtonConfirm(lnkDelete, Localization.GetString("ConfirmDelete", LocalResourceFile));
}
else
{
pnlAdminControls.Visible = false;
}
}
}
Personally I have never tried to get to the controls in a header or footer of a repeater, but I am sure it would be something similar