Answers for "C# MongoDB projections"

C# MongoDB projections

using System;
using MongoDB.Driver;
using MongoDB.Bson;

namespace DeleteDocument
{
    class Program
    {
        static void Main(string[] args)
        {
            var dbClient = new MongoClient("mongodb://127.0.0.1:27017");

            IMongoDatabase db = dbClient.GetDatabase("testdb");

            var cars = db.GetCollection<BsonDocument>("cars");
            var filter = Builders<BsonDocument>.Filter.Eq("name", "BMW");

            cars.DeleteOne(filter);
        }
    }
}

Posted by: Guest on October-13-2021

Source

C# MongoDB projections

using System;
using MongoDB.Driver;
using MongoDB.Bson;

namespace UpdateDocument
{
    class Program
    {
        static void Main(string[] args)
        {
            var dbClient = new MongoClient("mongodb://127.0.0.1:27017");

            IMongoDatabase db = dbClient.GetDatabase("testdb");

            var cars = db.GetCollection<BsonDocument>("cars");

            var filter = Builders<BsonDocument>.Filter.Eq("name", "Audi");
            var update = Builders<BsonDocument>.Update.Set("price", 52000);

            cars.UpdateOne(filter, update);
        }
    }
}

Posted by: Guest on October-13-2021

Source

C# MongoDB projections

using System;
using MongoDB.Driver;
using MongoDB.Bson;

namespace Projections
{
    class Program
    {
        static void Main(string[] args)
        {
            var dbClient = new MongoClient("mongodb://127.0.0.1:27017");

            IMongoDatabase db = dbClient.GetDatabase("testdb");

            var cars = db.GetCollection<BsonDocument>("cars");
            var docs = cars.Find(new BsonDocument()).Project("{_id: 0}").ToList();

            docs.ForEach(doc =>
            {
                Console.WriteLine(doc);
            });
        }
    }
}

Posted by: Guest on October-13-2021

Source

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