Mongo C#将ObjectId反序列化为字符串

using MongoDB.Bson;
using MongoDB.Bson.Serialization.Attributes;
using MongoDB.Driver;

// 定义实体类
public class MyDocument
{
    [BsonId]
    [BsonRepresentation(BsonType.ObjectId)]
    public string Id { get; set; }

    public string Name { get; set; }
    public int Age { get; set; }
}

// 连接MongoDB并查询文档
public class Program
{
    static void Main(string[] args)
    {
        string connectionString = "mongodb://localhost:27017/mydatabase";
        MongoClient client = new MongoClient(connectionString);
        IMongoDatabase database = client.GetDatabase("mydatabase");
        IMongoCollection<MyDocument> collection = database.GetCollection<MyDocument>("mycollection");

        var documents = collection.Find(x => x.Age > 18).ToList();

        foreach (var document in documents)
        {
            Console.WriteLine($"Id: {document.Id}, Name: {document.Name}, Age: {document.Age}");
        }
    }
}