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The OnClientDropDownClosed client-side event occurs after the drop-down list has been closed.

The event handler receives two parameters:

  1. The instance of the DropDownList firing the event.

  2. An eventArgs parameter which does not have methods.

You can use this event to perform any client-side actions when the drop-down is completely closed:

<script type="text/javascript">
    function OnClientDropDownClosedHandler(sender, eventArgs) {
        alert("Dropdown is closed now");

        <telerik:DropDownListItem Text="Item 1" />
        <telerik:DropDownListItem Text="Item 2" />
        <telerik:DropDownListItem Text="Item 3" />
        <telerik:DropDownListItem Text="Item 4" />
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