I've uploader contacts from my application to Google Contacts with an external code property named extcod.
ExtendedProperty property = new ExtendedProperty();
property.Name = "http://www.example.com/schemas/2005#mycal.extcod";
property.Value = item["ana_id"].ToString();
newEntry.ExtendedProperties.Add(property);
Now I'd like to search a Google Contacts by the extended property extcod. but I can't understand how to use ContactsQuery
class to setting up a where condition that use ExtendedProperty
.