delay Number(default: 200)

Specifies the delay in milliseconds after which the DropDownTree will start filtering dataSource.

Example - set the delay

<input id="dropdowntree" />

<script>
    $("#dropdowntree").kendoDropDownTree({
        dataSource: [{ text: "aitem1", value: 1 }, { text: "bitem2", value: 2 }],
        filter: "startsWith",
        delay: 1000 // wait 1 second before filtering
    });
</script>