Get all objects where a property matches a value nested in array - mongodb

Question

I have the following data table:
{
"_id" : ObjectId("value"),
"owner" : "testuser",
"date" : ISODate("2017-03-16T12:45:03.386Z"),
"location" : "thuis",
"venue" : "bijna thuis",
"description" : "fghgfh",
"completed" : false,
"winnerName" : null,
"subscriptions" : [],
"interactions" : [
{
"_id" : ObjectId("objectid"),
"owner" : "testuser",
"type" : "guess",
"date" : ISODate("2017-03-06T12:13:10.049Z"),
"answer" : false,
"message" : "test 1"
},
{
"_id" : ObjectId("objectid"),
"owner" : "testuser",
"type" : "guess",
"date" : ISODate("2017-03-06T12:13:10.049Z"),
"answer" : false,
"message" : "test 2"
}
],
"__v" : 0,
"active" : true
}
The above is just one game object. Which means we got several of this objects in our database.
I am trying to get only the interactions where the owner == "testuser".
The problem is that I cannot seem to figure out the best way to do this.
In my code I got 2 objects ( Game & Interaction) where Game has an array of interactions.
Is there someway I can still do this using the mongocsharpdriver.
Thanks in advance for all the help.

Answer 1

Hope it work for you Thanks :-)
collection.Find(x => x.owner == "testuser").ToList(); //where collection is MongoDB collection

Answer 2

Thanks for all the suggestions and sorry for the late response. But I find a way to solve it like this:
var filter = Builders<Game>.Filter.ElemMatch("interactions",
Builders<Interaction>.Filter.Eq("owner", owner));
var interactions = await MongoCollection.Find(filter).ToListAsync();
return interactions.SelectMany(item => item.Interactions).ToList();
This will it will return all the interactions that has a certain user as owner.
Hope I can help somebody out with this answer.