C# 添加到子BsonDocument

我有以下几点。它起作用了

  private static async Task AddAndUpdateNestedDocument(IMongoCollection<BsonDocument> collection)
  {
      var key = "bert";
      var filter = Builders<BsonDocument>.Filter.Exists(key);
      await collection.DeleteManyAsync(filter);
      var subkey = "friend";
      var document = new BsonDocument(key, new BsonDocument(subkey, "ernie"));
      await collection.InsertOneAsync(document);
      var updater = Builders<BsonDocument>.Update.Set("sesame", "street");
      await collection.UpdateOneAsync(filter, updater);
  }

这很好，但是我真正想做的是让update命令在“bert”子文档中插入“sesame”和“street”，这样它就结束了：

{ "_id" : ObjectId("5ef62acf152cc17a1c139f6d"), "bert" : { "friend" : "ernie" }, "sesame" : "street" }

{ "_id" : ObjectId("5ef62acf152cc17a1c139f6d"), "bert" : { "friend" : "ernie", "sesame" : "street" } }

---

如何操作？

对于嵌套字段，您可以使用：

Builders.Update.Set（key+“.sesame”、“street”）；

你能试试

Builders.Update.Set（“bert.sesame”、“street”）？宾果，成功了
Builders<BsonDocument>.Update.Set(key + ".sesame", "street");