c# - 使用 C# 在 mongodb 中按 id 字段删除文档

Question

我试图通过 id 删除文档，它是 ObjectId 类型，我确实已将字符串转换为 ObjectId 并作为参数传递以从集合中删除，但我无法删除记录。

我不知道背后的实际原因是什么，寻找解决方案，下面是我的代码示例:

 public void DeleteRecords(string objectID)
        {
            try
            {
                // Create server settings to pass connection string, timeout, etc.
                MongoServerSettings settings = new MongoServerSettings();
                settings.Server = new MongoServerAddress("localhost", 27017);
                // Create server object to communicate with our server
                MongoServer server = new MongoServer(settings);

                MongoDatabase myDB = server.GetDatabase("DemoMongoDB");

                MongoCollection<BsonDocument> records = myDB.GetCollection<BsonDocument>("Records");
                //var query = Query<Records>.EQ(fd => fd._id, ObjectId.Parse(name));
                var query = Query<Records>.EQ(e => e._id, new BsonObjectId(objectID));
                records.Remove(query);

            }
            catch (Exception ex)
            {

            }
        }

Answer 1

试试下面的代码，看看是否有效？

var query = Query.EQ("_id", new BsonObjectId("objectID"));

或者

var query = Query.EQ("_id", name);
records.Remove(query);