Not able to get Table multiselect feild in webform

Hi Team,

I created one custom doctype called Customer query and created one custom child doctype called Modules.In that i added Accounts,Projects and Manufacture.This child table is field i created in customer query as table multiselect.In doctype it is working.But i creaated one webform and trying to get the field but that is not showing.Please suggest me on this.