OnSelectedIndexChanged

The selectedIndexChanged event occurs when user changes the selected item in RadRadioButtonList.

The event handler receives two parameters:

1. The instance of the loaded RadRadioButtonList control.

2. An eventArgs parameter of type Telerik.Web.UI.RadioButtonListSelectedIndexChangedEventArgs, containing the following properties and methods:

   • get_oldSelectedIndex() - returns the index of the previously selected item.
   • get_newSelectedIndex() - returns the index of the currently selected item.

Example 1: Handling RadRadioButtonList OnSelectedIndexChanged event.

ASP.NET

<script type="text/javascript">
	function OnSelectedIndexChanged(sender, args) {
		var oldItem = sender.get_items()[args.get_oldSelectedIndex()];
		var newItem = sender.get_items()[args.get_newSelectedIndex()];
		alert("You changed from " + oldItem.get_text() + " to " + newItem.get_text() + " language.");
	}
</script>

<telerik:RadRadioButtonList runat="server" ID="RadRadioButtonList1">
	<ClientEvents OnSelectedIndexChanged="OnSelectedIndexChanged" />
	<Items>
		<telerik:RadioButtonListItem Text="English" Selected="true" />
		<telerik:RadioButtonListItem Text="German" />
		<telerik:RadioButtonListItem Text="French" />
	</Items>
</telerik:RadRadioButtonList>

See Also

• RadioButtonList Object

• Events Overview

• OnLoad (load)

• OnItemLoad (itemLoad)

• OnItemClicking (itemClicking)

• OnItemClicked (itemClicked)

• OnSelectedIndexChanging (selectedIndexChanging)

• OnItemMouseOver (itemMouseOver)

• OnItemMouseOut (itemMouseOut)