C#中使用1.7版本驱动操作MongoDB简单例子

//带有用户名，密码的如下写法，不带的则直接ip+端口就可以
const string connectionString = "mongodb://city:liyang@192.168.1.211:27017";
//得到一个客户端对象的引用                    GetServer()对服务器对象的引用          
var Server = new MongoClient(connectionString).GetServer();
//到一个数据库对象的引用
var client = Server.GetDatabase("City");
//对一组对象的引用
var collection = client.GetCollection<citys>("citys");

//插入一个 实体
for (int i = 0; i < dt.Rows.Count; i++)
{
    collection.Insert(new citys
    {
        province = dt.Rows[i][0].ToString(),
        city = dt.Rows[i][1].ToString(),
        county = dt.Rows[i][2].ToString(),
        areacode = "0" + dt.Rows[i][3].ToString(),
        postalcode = dt.Rows[i][3].ToString()
    });
}

    public string Name { get; set; }
}

using MongoDB.Bson;
using MongoDB.Driver;
using MongoDB.Driver.Builders;

namespace ConsoleApplication1
{
    public class Entity
    {
        public ObjectId Id { get; set; }
        public string Name { get; set; }
    }

    class Program
    {
        static void Main(string[] args)
        {
            var connectionString = "mongodb://localhost";
            var client = new MongoClient(connectionString);
            var server = client.GetServer();
            var database = server.GetDatabase("test");
            var collection = database.GetCollection<Entity>("entities");

            var entity = new Entity { Name = "Tom" };
            collection.Insert(entity);
            var id = entity.Id;

            var query = Query<Entity>.EQ(e => e.Id, id);
            entity = collection.FindOne(query);

            entity.Name = "Dick";
            collection.Save(entity);

            var update = Update<Entity>.Set(e => e.Name, "Harry");
            collection.Update(query, update);

            collection.Remove(query);
        }
    }
}