MongoDb use filter to match a list

manpreet Best Answer 3 years ago

I have a list of BsonDocument:

var myIds = db
.GetCollection<BsonDocument>(collectionName)
.Find(_ => true)
.Project(Builders<BsonDocument>.Projection.Include("_id"))
.ToList();

that contains:

myIds = "{ 
{ "_id" : "cc9d9282-c9d2-4cba-a776-ffddsds274d5" },  
{ "_id" : "2c1ddd82-c9d2-4dda-afr6-d79ff1274d56" },  
{ "_id" : "ss969281-c9d2-4cba-a776-d79ffds274d5" }  
}"

And want to query like this:

var deleted =list.DeleteMany(Builders<MessageExchange>.Filter.In("_id", myIds));

Returns the attribute DeletedCount = 0 Could somebody point what seems to be wrong about the filter?