Convert string into MongoDB BsonDocument

I have a long string in JSON format, and I want to convert it into a BSONDocument for insertion into a MongoDB database. How do I do the con开发者_高级运维version? I'm using the official C# driver.

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The answer is:

string json = "{ 'foo' : 'bar' }";
MongoDB.Bson.BsonDocument document
    = MongoDB.Bson.Serialization.BsonSerializer.Deserialize<BsonDocument>(json);

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string json = "{ 'foo' : 'bar' }";  
BsonDocument document = BsonDocument.Parse(json);

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Using Version 2.1 of MongoDB's .NET library

string json = "{'foo' : 'bar' }";
var document = new BsonDocument();
document.Add(BsonDocument.Parse(json));