.net - Mongodb c# 2.0 driver doesn't ignore extra elements -


i'm using 2.0 mongodb c# driver.
have 2 classes:

[bsonignoreextraelements] public class a{...}  [bsonignoreextraelements] public class b:a{...}

this code:

public async task<list<a>> getlist(string x) {     var collection = db.getcollection<a>("mycollection");     var filter = builders<a>.filter.eq("fielda", x);     list<a> anslist = await collection.find(filter).tolistasync();      return anslist; }

on computer works fine, reason on other computers function returns list<b> contains full objects saved in db. don't want expose fields users therefore must return list without class b's fields.


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