title: kendo - mutiselect - loading spinner while rendering
body: <p>I am using kendo multiselect element with some list which have 200+ elements.
  All elements are loaded before you can access the multiselect - but it take some time to render these elements in multiselect.
  Is there a way to display loading spinner while multiselect element is rendering?
  I am  not talking about displaying spinner while it get data from remote - i have all data downloaded and the only problem is that multiselect is rendering too slow.</p>