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Setting a cssclass on a clicked item

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Rotator

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1 Answer, 1 is accepted

answered on 20 May 2010, 03:05 PM

Hi Steve,

I created for you a simple example which adds a custom css class to the currently clicked element, and removes the css from the previously clicked element. Here it is the code:
ASPX:

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!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>

<style type="text/css">

.CustomStyle span

{

color: Red !important;

}

</style>

</head>

<body>

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

<script type="text/javascript">

var previousElement;

function RotatorItemClick(rotator, args)

{

var item = args.get_item();

var index = item.get_index();

var itemElement = item.get_element();

Sys.UI.DomElement.addCssClass(itemElement, "CustomStyle");

if (previousElement != null)

{

Sys.UI.DomElement.removeCssClass(previousElement, "CustomStyle");

}

previousElement = itemElement;

}

</script>

<div>

<telerik:RadRotator ID="RadRotator1" runat="server" Width="80px" Height="20px"

ScrollDuration="500" FrameDuration="2000" ItemHeight="30" ItemWidth="30"

OnClientItemClicked="RotatorItemClick">

</telerik:RadRotator>

</div>

</form>

</body>

</html>

Codebehind:

protected override void CreateChildControls()

{

string[] months = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };

foreach(string month in months)

{

RadRotatorItem rotatorItem = new RadRotatorItem();

RadRotator1.Items.Add(rotatorItem);

Label lbl = new Label();

lbl.Text = month;

rotatorItem.Controls.Add(lbl);

}

Let us know if you have any other questions.

Sincerely yours,
Petio Petkov
the Telerik team

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