c# MongoDB 对子文档字段的更新？

Question

更新文档下的Name字段可以：
var filter = Builders.Filter.Eq("Name", "1");
var update = Builders.Update.Set("Name", "880");
var result = collection.UpdateOneAsync(filter, update).Result;
更新子文档下的字段就不能了！
var filter = Builders.Filter.Eq("address.num", "1");
var update = Builders.Update.Set("address.num", "880");
var result = collection.UpdateOneAsync(filter, update).Result;

num是people下的address下的一个字段

Answer 1

http://www.cnblogs.com/gaobing/p/5667021.html