How to add Search in Details Modal Picker lightswitch

On my screen i have Details modal picker which gives all accounts(Contracter) name from tb_account. I want to add search in the Contracter dialog, I have already made a sorted and filtered query, and binded to "Contracter's Details modal picker" but can't figure how to add search in Contracter Dialog.

see image:

need search box

I am using Lightswitch 2013 Html Client with c# and JS. Thanks

Solution

I have updated visual studio 2013 to march update and it now provides autocomplete and searchable picker so my problem is solved. http://blogs.msdn.com/b/lightswitch/archive/2014/03/03/office-developer-tools-for-visual-studio-2013-march-2014-update.aspx

hope it'll help someone