Once created, many Kendo components root DOM element are wrapped under new HTML elements.  Any class of the original input will also be copied to some parent elements.

As each widget (DateTimePicker, DropDownList, ComboBox...) are wrapped differently, it might be a good idea to add a class to the root input (k-root) that would allow us to search for that specific input.

See this post for more details:
http://www.kendoui.com/forums/ui/general-discussions/best-way-to-find-the-root-element-by-class.aspx