c# - 为什么 KeyValuePair 在 Unity3d 的 Firebase Firestore 中使用 Query 获取文档时缺少值？

Question

我有这样的收藏

我正在尝试获取排行榜的名称和分数，但名字缺少分数，如下所示

这是我的代码：

public void GetLeaderboardData()
    {

        Firebase.Firestore.Query allUsersQuery = db.Collection("users").OrderByDescending("timestamp").Limit(20);
        allUsersQuery.GetSnapshotAsync().ContinueWithOnMainThread(task => {
            QuerySnapshot allUsersQuerySnapshot = task.Result;
            foreach (DocumentSnapshot documentSnapshot in allUsersQuerySnapshot.Documents)
            {
                //Debug.Log (String.Format ("Document data for {0} document:", documentSnapshot.Id));
                Dictionary<string, object> user = documentSnapshot.ToDictionary();
                foreach (KeyValuePair<string, object> pair in user)
                {
                    Debug.Log(String.Format("{0}: {1}", pair.Key, pair.Value));

                    if (pair.Key == "score")
                    {
                        score = (string)pair.Value;
                    }

                    if (pair.Key == "name")
                    {
                        uname = (string)pair.Value;
                        GameObject tBar = Instantiate(postPrefab.gameObject, transform.position, transform.rotation);
                        tBar.transform.SetParent(PostParent, false);
                        tBar.transform.GetChild(0).GetComponent<Text>().text = score;
                        tBar.transform.GetChild(2).GetComponent<Text>().text = uname;
                        tBar.gameObject.name = documentSnapshot.Id;
                    }
                }
            }
        });
    }

我做错了什么？任何人都可以帮忙吗？