Question

While my program is running it receives messages with Id’s and data in one message.

I want to make a new List for every Id where I can store the data from that Id.
The problem is that I don’t know how many Id’s I wil receive until my program is running. The only thing I know is that it’s a lot. So I don’t know if it is possible or how I should do this.
This is wat I’m basically trying to do:

if (!(idlist.Contains(id))){

 idlist.Add(id);
 List<string> id.ToString() = new List<string>();}

Answer 1

You can do something like:

Dictionary<int, List<string>> dictionary = new Dictionary<int, List<string>>();
dictionary[newId] = new List<string>();
dictionary[newId].add("Hello!");

Dictionaries are quite handy!

You can do something like this as well:

if(!dictionary.ContainsKey(newId)){
    //Add the new List<string> to the dictionary
}else{
    //Add to the existing List<string> at dictionary[newId]
}

Hope this helps!