OnClientSelectedIndexChanged
The OnClientSelectedIndexChanged client-side event occurs immediately after the SelectedItem has been changed.
The event handler receives two parameters:
The instance of the DropDownList firing the event.
-
An eventArgs parameter containing the following method:
- get_index() returns the index of the item, that has just been selected.
Use this event to respond to the newly selected item:
<script type="text/javascript">
function OnClientSelectedIndexChanged(sender, eventArgs) {
alert("You selected item with index : " + eventArgs.get_index());
}
</script>
<telerik:RadDropDownList
ID="RadDropDownList1"
runat="server"
OnClientSelectedIndexChanged="OnClientSelectedIndexChanged">
<Items>
<telerik:DropDownListItem Text="Item 1" Value="1" />
<telerik:DropDownListItem Text="Item 2" Value="2" />
<telerik:DropDownListItem Text="Item 3" Value="3" />
<telerik:DropDownListItem Text="Item 4" Value="4" />
</Items>
</telerik:RadDropDownList>