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how to access a header template in c#

I have a template:
<asp:Repeater ID="litFolder" runat="server" OnItemDataBound="litFolder_ItemDataBound">
<HeaderTemplate>
<ul class="test" id="currentLink">
</HeaderTemplate>
<ItemTemplate>
<div class="leftNav">
<li>
<asp:HyperLink ID="innerHyperLink" runat="server"></asp:HyperLink>
</li>
</div>
</ItemTemplate>
<FooterTemplate>
</ul>
</FooterTemplate>
</asp:Repeater>
and I'm trying to set the to display block when a link is selected. I can set the link to display block, but how do I set the ul to display block ( only using C# )
protected void litFolder_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
// if the child from the first repeater has children, it will grab them here
Item innerItem = (Item)e.Item.DataItem;
if (innerItem != null)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// this creates a link to the page in sitecore once clicked
HyperLink topNavigation = (HyperLink)e.Item.FindControl("innerHyperLink");
topNavigation.NavigateUrl = LinkManager.GetItemUrl(innerItem);
topNavigation.Text = innerItem["Title"];
if (topNavigation != null) {
//this is where I think I need to define the ul to display block
}
}
}
}
I need to make sure that the current link sets the ul that it is in and not all the ul's with the class test.

In order to prevent the Ul from being broken, place the <div class="leftNav"> inside the <li> as shown below:
<asp:Repeater ID="litFolder" runat="server" OnItemDataBound="litFolder_ItemDataBound">
<HeaderTemplate>
<ul class="test" id="currentLink">
</HeaderTemplate>
<ItemTemplate>
<li>
<div class="leftNav">
<asp:HyperLink ID="innerHyperLink" runat="server"></asp:HyperLink>
</div>
</li>
</ItemTemplate>
<FooterTemplate>
</ul>
</FooterTemplate>
To set the display block style, you can find the control based on the ID, then set the style to it.
Thanks

Bind 5 items in each row of repeater

I have a set of items coming from the database. Their number may vary. I have bound them in a repeater. Now my following example will explain what I want:
I have 11 items coming from database, I want them to be grouped in terms of 5 items per row.
1st row: 5 items.
2nd row: 5 items.
3rd row: 1 item.
Currently, I am just binding them in a repeater. How do I do this?

Yes. It is possible:
<asp:Repeater ID="rptItems" runat="server">
<ItemTemplate>
<asp:Literal runat="server" Text='<%# Eval("Value") %>'></asp:Literal>
<div style="clear: both" runat="server" Visible="<%# (Container.ItemIndex+1) % 5 == 0 %>"></div>
</ItemTemplate>
</asp:Repeater>
It produces following results for the sequence of numbers:
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20

if you can use ListView, then you can use GroupItemCount . some thing like this MSDN Example
<asp:ListView ID="ContactsListView"
DataSourceID="yourDatasource"
GroupItemCount="5"
runat="server">
<LayoutTemplate>
<table id="tblContacts" runat="server" cellspacing="0" cellpadding="2">
<tr runat="server" id="groupPlaceholder" />
</table>
</LayoutTemplate>
<ItemTemplate>
<div> your Items here </div>
</ItemTemplate>
<GroupTemplate>
<tr runat="server" id="ContactsRow" style="background-color: #FFFFFF">
<td runat="server" id="itemPlaceholder" />
</tr>
</GroupTemplate>
<ItemSeparatorTemplate>
<td runat="server" style="border-right: 1px solid #00C0C0"> </td>
</ItemSeparatorTemplate>
</asp:ListView>

If you want to stick with a Repeater, I can think of two approaches.
Firstly, you could stick with a flat list of items and make the repeater insert a "new line" after each 5th item. You should be able to do this in the <ItemTemplate> with a block like
<% if ((Container.DataItemIndex % 5) == 4) { %>
</div>
<div>
<% } %>
which honestly isn't very nice.
Alternatively, you could use MoreLINQ's Batch method to batch your items up into IEnumerables of 5, and then use two nested repeaters to render them. Set the outer repeater to wrap the inner repeater in <div> tags, and set the inner repeater's DataSource='<%# Container.DataItem %>'. This should result in much cleaner markup.

You can try below, I mistakenly said ListView, actually I meant DataList
<asp:DataList ID="DataList1" runat="server" RepeatColumns="5"
RepeatDirection="Horizontal" RepeatLayout="Flow">
<ItemTemplate >
<%--Your Item Data goes here--%>
</ItemTemplate>
</asp:DataList>

You may use nested Data controls (i.e Repeater) and also handle the OnItemDataBound event to bind the inner Repeater.
Sample Data Source component:
public class Item
{
public int ID { get; set; }
public string Name { get; set; }
public static List<List<Item>> getItems()
{
List<Item> list = new List<Item>()
{
new Item(){ ID=11, Name="A"},
new Item(){ ID=12, Name="B"},
new Item(){ ID=13, Name="C"},
new Item(){ ID=14, Name="D"},
new Item(){ ID=15, Name="E"},
};
/* Split the list as per specified size */
int size = 2;
var lists = Enumerable.Range(0, (list.Count + size - 1) / size)
.Select(index => list.GetRange(index * size,
Math.Min(size, list.Count - index * size)))
.ToList();
return lists;
}
}
Markup (.aspx)
<asp:Repeater ID="outerRepeater"
runat="server" onitemdatabound="outerRepeater_ItemDataBound"
>
<ItemTemplate>
<p>
Row
</p>
<asp:Repeater ID="innerRepeater"
runat="server">
<ItemTemplate>
<asp:Literal ID="literal1" runat="server" Text='<%# Eval("ID") %>' />
<asp:Literal ID="literal2" runat="server" Text='<%# Eval("Name") %>' />
</ItemTemplate>
</asp:Repeater>
</ItemTemplate>
</asp:Repeater>
Code-behind
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
outerRepeater.DataSource = Item.getItems();
outerRepeater.DataBind();
}
}
protected void outerRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
Repeater repeater = e.Item.FindControl("innerRepeater") as Repeater;
repeater.DataSource = Item.getItems()[e.Item.ItemIndex];
repeater.DataBind();
}

<asp:Repeater ID="Repeater1" runat="server"
OnItemDataBound="Repeater1_databinding">
<HeaderTemplate>
<table id="masterDataTable" class="reportTable list issues" width="100%">
<thead>
<tr>
<asp:Literal ID="literalHeader" runat="server"></asp:Literal>
</tr>
</thead>
<tbody>
</HeaderTemplate>
<ItemTemplate>
<tr>
<asp:Literal ID="literals" runat="server"></asp:Literal>
</tr>
</ItemTemplate>
<FooterTemplate>
</tbody> </table>
</FooterTemplate>
</asp:Repeater>
<input id="hdnColumnName" runat="server" clientidmode="Static" type="hidden" />
<input id="hdnColumnOrder" runat="server" clientidmode="Static" type="hidden" />
// javascript Function
<script type="text/javascript">
$(document).ready(function () {
$('#ddlReport').removeClass('required');
$('.sort').click(function () {
$('#hdnColumnName').val($(this).text());
$('#hdnColumnOrder').val($(this).attr('class'));
$(this).toggleClass("desc asc");
$("#lnkSort").click();
});
});
</script>
// Bind repeater
DataTable dt = objReport.GetCustomRecord();
fn = new List<string>();
for (int i = 0; i < dt.Columns.Count; i++)
{
if (dt.Columns[i].ColumnName != "Maxcount" )
{
fn.Add(dt.Columns[i].ColumnName);
}
}
Repeater1.DataSource = dt;
Repeater1.DataBind();
protected void Repeater1_databinding(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Header)
{
if (e.Item.FindControl("literalHeader") != null)
{
StringBuilder sb = new StringBuilder();
Literal li = e.Item.FindControl("literalHeader") as Literal;
fieldName().ForEach(delegate(string fn)
{
if (hdnColumnName.Value != fn.ToString())
{
sb.Append("<th width=\"10%\"> <a id=\"btnCustomerName\" class=\"sort desc\" onclick=\"btnSorts_onclick()\" style=\"cursor:pointer;text-decoration: none !important;\" >"
+ fn.ToString() + "</a></th>");
}
else
{
if (hdnColumnOrder.Value == "sort asc")
sb.Append("<th width=\"10%\"> <a id=\"btnCustomerName\" class=\"sort desc\" onclick=\"btnSorts_onclick()\" style=\"cursor:pointer;text-decoration: none !important;\" >"
+ fn.ToString() + "</a></th>");
else
sb.Append("<th width=\"10%\"> <a id=\"btnCustomerName\" class=\"sort asc\" onclick=\"btnSorts_onclick()\" style=\"cursor:pointer;text-decoration: none !important;\">"
+ fn.ToString() + "</a></th>");
}
});
li.Text = sb.ToString();
}
}
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
if (e.Item.FindControl("literals") != null)
{
DataRowView drv = (DataRowView)e.Item.DataItem;
Literal li = e.Item.FindControl("literals") as Literal;
StringBuilder sb = new StringBuilder();
fieldName().ForEach(delegate(string fn)
{
sb.Append("<td>" + drv[fn.ToString()] + "</td>");
});
li.Text = sb.ToString();
}
}
}

How can i insert a C# list into a Div?

I have a C# list:
List<string> Listtags = GetListTag.GetTagList().ToList();
And, I would like to put it into a Div:
<div id="tags">
<ul>
<li><This should be populated with my list></li>
//This list can have any number of items depending on how big my list tags is
</ul>
</div>
Could someone show me how to do this?

you can also use Repeater
<ul>
<asp:Repeater runat="server" id="R">
<ItemTemplate>
<li><%# Container.DataItem %></li>
</ItemTemplate>
</asp:Repeater>
</ul>
and in runtime
List<string> ListTags = GetListTag.GetTagList().ToList();
R.DataSource = ListTags;
R.DataBind();

Use asp:bulletedList and your list will be much easier.
<div id="tags">
<asp:BulletedList id="blTabs"
BulletStyle="Disc"
DisplayMode="LinkButton"
runat="server">
</asp:BulletedList>
</div>
Code Behind:
ListItem li = new ListItem();
li.Value = "html text"; //html goes here i.e. xtab1.html
li.Text = "New Text"; //text name goes i.e. here tab1
blTabs.Items.Add(li);

If you're using ASP.NET, you could use a BulletedList webserver control:
<asp:BulletedList ID="BulletedList1" runat="server"
BulletStyle="Circle"
DisplayMode="Text">
</asp:BulletedList>
and in codebehind:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
List<string> Listtags = GetListTag.GetTagList().ToList();
Listtags.ForEach(t => BulletedList1.Items.Add(t));
}
}
Edit: "I want to add something like this::: Listtags.ForEach(t => BulletedList1.Items.Add(t),"$tag$ "); weight being a variable in my code"
So i assume that you want to add hyperlinks and apply a different css class on the items.
<asp:BulletedList ID="BulletedList1" runat="server"
CssClass="TagList"
DisplayMode="HyperLink">
</asp:BulletedList>
and for example the css:
<style>
.TagList a {text-decoration:none}
.TagList a:link {text-decoration:none}
.TagList a:visited {text-decoration: none; color: blue}
.TagList a:hover {text-decoration: underline; color: red}
</style>
and how you add the links dynamically(the value of the ListItem is the URL):
Listtags.ForEach(t =>
BulletedList1.Items.Add(new ListItem(t, browseUrl + "?tag=$urlencodetag$"))
);

If you are using MVC3 you can do something like the following:
<div id="tags">
<ul>
#foreach(var item in Model.Listtags)
{
<li>#item.YourPropertyName</li>
}
</ul>
</div>

In Asp.Net
<ul id = "myul" runat = "server">
</ul>
In Code Behind (In Page Load I suppose or button click)
Listtags.ForEach(x => new ListItem(){Text = x });

How to access a Div inside a repeater using javascript

Simply, I have an anchor inside a repeater that triggers on click a javascript function, which sets the innerHTML of a Div to some content.
trying this outside a repeater did work!
but if I tried to implement the same code in the repeater's item template, it won't work!
NOTE: I think I need to access the repeater first then access the Anchor inside it! but I don't know how to do it
For further illustration:
JavaScript Function:
function show(ele, content) {
var srcElement = document.getElementById(ele);
if (srcElement != null) {
srcElement.innerHTML = content;
}
}
The repeater's code:
<asp:Repeater ID="Repeater1" runat="server" >
<ItemTemplate>
Name : <%# Eval("name")%>
<DIV ID= "PersonalInfo1" runat="server"></DIV>
<A id="A1" href="#" runat="server" onclick="show('PersonalInfo1','Address : ')">More...</A>
</ItemTemplate>
</asp:Repeater>
PS: THE POSTED CODE ISN'T WORKING IN THE REPEATER!

That is because id's are unique. Select elements using getElementsByName or by their class name with for example jQuery.

OK... let's start over.
Have such repeater code:
<asp:Repeater ID="Repeater1" runat="server" >
<ItemTemplate>
<div>
Name : <%# Eval("name")%>
<div id="Address" runat="server" style="display: none;"><%# Eval("address")%></div>
<div id="Interests" runat="server" style="display: none;"><%# Eval("interests")%></div>
<a id="A1" href="#" runat="server" onclick="return show(this, 'Address');">Show address</a>
<a id="A2" href="#" runat="server" onclick="return show(this, 'Interests');">Show interests</a>
</div>
</ItemTemplate>
</asp:Repeater>
Then such JavaScript code:
function show(oLink, targetDivID) {
var arrDIVs = oLink.parentNode.getElementsByTagName("div");
for (var i = 0; i < arrDIVs.length; i++) {
var oCurDiv = arrDIVs[i];
if (oCurDiv.id.indexOf(targetDivID) >= 0) {
var blnHidden = (oCurDiv.style.display == "none");
oCurDiv.style.display = (blnHidden) ? "block" : "none";
//oLink.innerHTML = (blnHidden) ? "Less..." : "More...";
}
}
return false;
}
This will search for "brother" DIV element of the clicked link, and show or hide it.
The code is as simple as possible using pure JavaScript, you should be able to understand what each line is doing - feel free to ask if you don't. :)
Note, you have to put the personal info in the PersonalInfo div in advance instead of passing it to the function - the function will get pointer to the clicked link.

Yes you need to iterate all the relevant links. Solution that involve minimal change of code is adding class to the links then check for this class:
<A id="A1" href="#" runat="server" class="RepeaterLink" ...>
And then in JavaScript:
var arrLinks = document.getElementsByTagName("a");
for (var i = 0; i < arrLinks.length; i++) {
var oLink = arrLinks[i];
if (oLink.className == "RepeaterLink") {
//found link inside repeater..
oLink.click();
}
}
This will "auto click" all the links, you can check ID or something else to imitate click of specific link in the repeater as well.

How to add forms inputs in an unordered list element

I'm dynamically generating an asp form, and I would like to add the label and input elements inside a list.
For example, I would like to end up with something like:
<ul>
<li><label for="input"/><input id=input"/></li>
</ul>
To do this, I create a Label object and a TextBox object, then assign the AssociatedControlId property of the Label to link these. But I cannot add any of these in a ListItem, nor can I add these in the Controls collection of BulletedList...
Any ideas would be greatly apreciated.

The System.Web.UI.HtmlControls namespace has some useful controls.
In your aspx:
<asp:PlaceHolder ID="PlaceHolder1" runat="server" />
In your code behind:
HtmlGenericControl list = new HtmlGenericControl("ul");
for (int i = 0; i < 10; i++)
{
HtmlGenericControl listItem = new HtmlGenericControl("li");
Label textLabel = new Label();
textLabel.Text = String.Format("Label {0}", i);
listItem.Controls.Add(textLabel);
// etc...
list.Controls.Add(listItem);
}
PlaceHolder1.Controls.Add(list);
Works like a charm.

You could probably do something like this using a Repeater.
<asp:Repeater ID="rpt" runat="server">
<HeaderTemplate>
<ul>
</HeaderTemplate>
<ItemTemplate>
<li>
<label for='<%# string.Format("ctrl-{0}", Container.ItemIndex) %>'>label for ctrl #<%# Container.ItemIndex %></label>
<input id='<%# string.Format("ctrl-{0}", Container.ItemIndex) %>' type="text" />
</li>
</ItemTemplate>
<FooterTemplate>
</ul>
</FooterTemplate>
</asp:Repeater>
If you need to add server controls to the list, you'll need to do something with the Repeater's ItemDataBound event.