Delete in MongoDB with C# and .Net

Hi,

     DeleteOneAsync() and DeleteManyAsync() are the two functions in MongoDB driver which is used to delete the records from the MongoDB from C# language. DeleteOneAsync() is used to delete single record from the MongoDB and DeleteManyAsync() is used to delete one or more number of records from the MongoDB.

In the below code, I am deleting record with ‘MasterID’ as ‘140’ and deleting the record with ‘MasterID’ less than ‘1000’

C#:  .Net 4.5  & MongoDB Driver 2.0

using System;

using System.Threading.Tasks;

using MongoDB.Driver;

using MongoDB.Driver.Core;

using MongoDB.Bson;

namespace Deldata

{

    class Program

    {

        static void Main(string[] args)

        {

            callMain(args).Wait();

            Console.ReadLine();

        }

        static async Task callMain(string[] args)

        {

            var conString = "mongodb://localhost:27017";

            var Client = new MongoClient(conString);

            var DB = Client.GetDatabase("test");

            var collection = DB.GetCollection<BsonDocument>("MasterIds");

            //deleting single record

            var Deleteone = await collection.DeleteOneAsync(

                            Builders<BsonDocument>.Filter.Eq("MasterID", 140));

            //deleting multiple record

            var DelMultiple = await collection.DeleteManyAsync(

                             Builders<BsonDocument>.Filter.Lt("MasterID", 1000));

            //retrieve's data

            await collection.Find(new BsonDocument())

             .ForEachAsync(x => Console.WriteLine(x));

        }

    }

}