Using the MongoDB C# driver How can I include more than one field in the query (Im using vb.net)
I know how to do (for name1=value1)
Dim qry = Query.EQ("name1","value1")
How can I modify this query so I can make it find all documents where name1=value1 and name2=value2?
( Similar to )
db.collection.find({"name1":"value1","name2":"value2"})
I wanted to search a text in different fields and Full Text Search doesn't work for me even after wasting so much time. so I tried this.
var filter = Builders<Book>.Filter.Or(
Builders<Book>.Filter.Where(p=>p.Title.ToLower().Contains(queryText.ToLower())),
Builders<Book>.Filter.Where(p => p.Publisher.ToLower().Contains(queryText.ToLower())),
Builders<Book>.Filter.Where(p => p.Description.ToLower().Contains(queryText.ToLower()))
);
List<Book> books = Collection.Find(filter).ToList();
You can use:
var arrayFilter = Builders<BsonDocument>.Filter.Eq("student_id", 10000)
& Builders<BsonDocument>.Filter.Eq("scores.type", "quiz");
Reference: https://www.mongodb.com/blog/post/quick-start-csharp-and-mongodb--update-operation
And doesn't always do what you want (as I found was the case when doing a not operation on top of an and). You can also create a new QueryDocument, as shown below. This is exactly the equivalent of what you were looking for.
Query.Not(new QueryDocument {
{ "Results.Instance", instance },
{ "Results.User", user.Email } }))
