Append data to unity class c# [duplicate]

Question

I'm new with unity and c#. I have a class with subclass as below. Now I want to add new data inside the list of friends.

[Serializable]
public class PlayerData
{
    public string playerName;
    public string playerId;
    public Friend[] friends;
}

[Serializable]
public class Friend
{
    public string playerName;
    public string playerId;
}

I want to add new friend in the friend class list. Code I have tried till now.

public string AddFriends(string friendId)
    {
        PlayerData pd = playerDataDict[playerId];
        Friend friend = new Friend();
        friend.playerId = friendId;
        pd.friends.Append(friend);
        return "sdwsd";
    }

Thank you

ProgrammingLlama · Accepted Answer · 2020-05-13 09:21:00Z

3

You should use a List<T>:

public List<Friend> friends = new List<Friend>();

And then it works as you expect (almost):

pd.friends.Add(friend);

edited May 13, 2020 at 9:21

answered May 13, 2020 at 9:08

ProgrammingLlama

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2 Comments

user7356972 Over a year ago

I already some friends in my pd.friends list. I just want to add one new member inside it. I'm learner to c# and unity. Hope you understand and help me with it.

ProgrammingLlama Over a year ago

I understand you entirely. Use a list. If you want a finitely-sized object, then use an array. If you want an expandable object (i.e. you can add more items): use a list. If you're setting "friends" elsewhere, then perhaps you can remove the = new List<Friend>() - I'm not really sure how Unity works with this kind of thing.

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