mongodb obtaining collection names c#

Question

I'm trying to obtain a list of all databases and the associated list of collections for a connection using Mongo C# Driver.

foreach (string database in server.GetDatabaseNames())
 {
  var db = client.GetDatabase(database);

  var col = ((MongoDatabase)db).GetCollectionNames();

   //Do something
    }

I'm able to obtain the list of databases but not the collection names. It doesn't get past

         ((MongoDatabase)db).GetCollectionNames();

What am I possibly missing?

Answer 1

MongoDB version 2.6

mongodb-csharp driver: 2.1.1

Try :

//user: root  pwd:pwd dbName:admin
  try
  {
    var client = new MongoClient("mongodb://root:pwd@localhost/admin");
    var db = client.GetDatabase("admin");
    foreach (var item in db.ListCollectionsAsync().Result.ToListAsync<BsonDocument>().Result)
     {
                Console.WriteLine(item.ToString());
     }
  } catch (Exception ex)
  {

    throw ex;
  }

Important: User 'root' must exists in the db

On cmd as admin

C:\yourMongoServer\bin>mongo.exe --port 27017
use admin
db.createUser(
  {
    user: "root",
    pwd: "pwd",
    roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]
  }
)