Please, give me some s开发者_StackOverflow社区amples of queries in C# with "$or" logic. I am using C# driver, written by Samus (https://github.com/samus/mongodb-csharp)...
If you have a typed collection (the Person type in this example) you can do an OR using Linq:
var mongo = new Mongo("Server=localhost:27017");
mongo.Connect();
List<Person> people = mongo["dbName"].GetCollection<Person>("people").Linq().Where(x => x.Age == 21 || x.Age == 35).ToList();
mongo.Disconnect();
At the moment that won't use the "$or" operator (it will use JavaScript for the ||
, see JavaScript Mode in this wiki page).
If you really want to use the "$or" operator you could build up a query document and pass an array of conditions to the "$or" operator:
var mongo = new Mongo("Server=localhost:27017");
mongo.Connect();
var query = new Document
{
{"$or", new Document[] { new Document("Age", 21), new Document("Age", 35) } }
};
Document people = mongo["dbName"].GetCollection("people").Find(query);
mongo.Disconnect();
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