.NET 操作MongoDB入门(三)最简单的增删改查操作

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using MongoDB.Driver;using MongoDB.Bson;namespace MongoDBTest{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            Mongo();        }        public void Mongo()        {            //建立连接            var client = new MongoClient();            //建立数据库            var database = client.GetDatabase("TestDb");            //建立collection            var collection = database.GetCollection("foo");            var document = new BsonDocument            {                {"name","MongoDB"},                {"type","Database"},                {"count",1},                {"info",new BsonDocument{{"x",203},{"y",102}}}            };            //插入数据            collection.InsertOne(document);            var count = collection.Count(document);            Console.WriteLine(count);            //查询数据            var document1 = collection.Find(document);            Console.WriteLine(document1.ToString());            //更新数据            var filter = Builders.Filter.Eq("name", "MongoDB");            var update = Builders.Update.Set("name", "Ghazi");            collection.UpdateMany(filter, update);            //删除数据            var filter1 = Builders.Filter.Eq("count", 101);            collection.DeleteMany(filter1);            BsonDocument document2 = new BsonDocument();            document2.Add("name", "MongoDB");            document2.Add("type", "Database");            document2.Add("count", "1");            collection.InsertOne(document2);        }    }}