NetworkingPeer.SetLevelInPropsIfSynced C# (CSharp) Method

    protected internal void SetLevelInPropsIfSynced(object levelId)
    {
        if (!PhotonNetwork.automaticallySyncScene || !PhotonNetwork.isMasterClient || PhotonNetwork.room == null)
        {
            return;
        }
        if (levelId == null)
        {
            Debug.LogError("Parameter levelId can't be null!");
            return;
        }

        // check if "current level" is already set in props
        if (PhotonNetwork.room.customProperties.ContainsKey(NetworkingPeer.CurrentSceneProperty))
        {
            object levelIdInProps = PhotonNetwork.room.customProperties[NetworkingPeer.CurrentSceneProperty];
            if (levelIdInProps is int && SceneManagerHelper.ActiveSceneBuildIndex == (int)levelIdInProps)
            {
                return;
            }
            if (levelIdInProps is string && SceneManagerHelper.ActiveSceneName != null && SceneManagerHelper.ActiveSceneName.Equals((string)levelIdInProps))
            {
                return;
            }
        }

        // current level is not yet in props, so this client has to set it
        Hashtable setScene = new Hashtable();
        if (levelId is int) setScene[NetworkingPeer.CurrentSceneProperty] = (int)levelId;
        else if (levelId is string) setScene[NetworkingPeer.CurrentSceneProperty] = (string)levelId;
        else Debug.LogError("Parameter levelId must be int or string!");

        PhotonNetwork.room.SetCustomProperties(setScene);
        this.SendOutgoingCommands();    // send immediately! because: in most cases the client will begin to load and not send for a while
    }

 public static void LoadLevel(int levelNumber)
 {
     networkingPeer.SetLevelInPropsIfSynced(levelNumber);
     isMessageQueueRunning = false;
     networkingPeer.loadingLevelAndPausedNetwork = true;
     Application.LoadLevel(levelNumber);
 }