WebDAV: Download group of vCards
You can search for vCards in remote address books using CARDDAV:addressbook-query report defined in RFC 6352. AddressBookQueryFirst(), AddressBookQueryNext(), AddressBookQueryClose() methods of TElWebDAVClient class are used to request and process such reports.
First of all you should call TElWebDAVClient.AddressBookQueryFirst() method to perform the request and get the property values for the first vCard from a search result. The method accepts several parameters:
vCard body can be retrieved via CARDDAV:address-data property on each report processing iteration.