labelString|Function|Object(default: null)
Adds a label before the dateinput. If the dateinput has no id attribute, a generated id will be assigned. The string and the function parameters are setting the inner HTML of the label.
Example - create a label from a string
<input id="dateinput" />
<script>
    $("#dateinput").kendoDateInput({
        label: "Description"
    })
</script>The function context (available through the keyword this) will be set to the widget instance.
Example - create a label from a function
<input id="dateinput" />
<script>
    $("#dateinput").kendoDateInput({
            label: function() {
                return "First name";
            }
    })
</script>In this article