DropDownList with empty optionLabel

by krustev

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.3.1030/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.3.1030/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2013.3.1030/js/kendo.all.min.js"></script>
<input id="products" />

JavaScript

$("#products").kendoDropDownList({
    dataTextField: "ProductName",
    dataValueField: "ProductID",
    optionLabel: " ",
    dataSource: {
        transport: {
            read: {
                dataType: "jsonp",
                url: "http://demos.kendoui.com/service/Products",
            }
        }
    }
});