如何将整个 Bson 文档转换为 dotnet 中的字符串

Question

I am using cosmos DB with Mongo API (MongoClient). I need to check a value contains in any of the fields in a document that has more than 50 properties.

So, I am trying to convert the whole document to string and then checking with contains method like below.

var d = _client.Find(f => f.ToString().Contains(str)).Limit(10).ToList();

'Unsupported filter: {document}.ToString().Contains("MyStringHere").

How can I convert the whole document to string and then use Contains method on it?

Answer 1

Using MongoDB.Bson.BsonExtensionMethods.ToJson , can convert Bson Document into a JSON formatted string.

string json = MongoDB.Bson.BsonExtensionMethods.ToJson<BsonDocument>(document);