How do you manage connections to mongodb from C#?

Question

How do you manage mongodb connection from c#? close after use(CRUD)? or put the connection open all the time?

to put things in perspective here is my code:

string connectionString = "mongodb://localhost";
MongoClient client = new MongoClient(connectionString);            
MongoServer server = client.GetServer();            
MongoDatabase database = server.GetDatabase("UsersDb");

Answer 1

MongoClient is added to the driver since 1.7, to manage replica set stuff. It's supposed to be singleton and is thread-safe. You can always get MongoServer from it.
You don't need to worry about closing connections. It's managed by the driver. Refer to the tutorial for more information.