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OnClientItemChecking
Updated over 6 months ago
The OnClientItemChecking client-side event occurs when a particular item is about to be checked. This event is fired before the particular item being checked.
The event handler receives two parameters:
-
The instance of the combobox firing the event.
-
An eventArgs parameter containing the following methods:
-
get_item returns the item that is about to be checked.
-
set_cancel lets you prevent the item from checking.
-
get_domEvent() returns the DOM event object.
This example show the item which is about to be checked:
ASPNET
<script language="javascript" type="text/javascript">
function OnClientItemChecking(sender, eventArgs) {
alert("The following items is about to be checked:" + eventArgs.get_item().get_text());
}
</script>
<telerik:RadComboBox RenderMode="Lightweight" ID="RadComboBox1" runat="server" OnClientItemChecking="OnClientItemChecking"
CheckBoxes="true">
</telerik:RadComboBox>