C# object list that can be declared, returning an iteration of items to be inserted into the main list

Question

C# question.

I need to fill my main object property, that is a list of a custom object, but at some point, I need to add to this list a replication with a specific declaration, but I don't want to have to add a line per each item, when there's only and index change on the specific ID of the item in the list.

How to do that with a loop that adds items to a list on the constructor declaration (or so).

Metacode sample:

private static readonly MainObject myObject = new()
{
  Type = "OP",
  Group = "FD",
  Items = new List<SubObject>
  {
    new SubObject("Tag.Count", 0),
    new SubObject("Tag.Min", 0),
    new SubObject("Tag.Max", 100),

    // Sub list starts here, from 1 to 10
    new SubObject("Tag.Pos.1", 1),
    new SubObject("Tag.Pos.2", 4),
    new SubObject("Tag.Pos.3", 9),
    ...
    new SubObject("Tag.Pos.10", 100),
    // Sub list ends here with 10 items

  }
}

So, my SubObject list contains what could be solved as a iteration of a single line, but how to do it in this declaration, ... something like, ... were i is a loop item from 1 to 10:

            ... new SubObject(`Tag.Pos.$i`, $i^2)

Looking for a solution that in the end, returns a sub list that can be added and included in the main list when declaring the object, recognized and accepted by the constructor:

Something that, just line in JavaScript can return something similar to:

...[new SubObject(`Tag.Pos.$i`, $i^2)]

Answer 1

you can try with for loop

private static readonly MainObject myObject = new MainObject
{
    Type = "OP",
    Group = "FD",
    Items = GenerateSubList()
};

private static List<SubObject> GenerateSubList()
{
    List<SubObject> subList = new List<SubObject>
    {
        new SubObject("Tag.Count", 0),
        new SubObject("Tag.Min", 0),
        new SubObject("Tag.Max", 100)
    };

    for (int i = 1; i <= 10; i++)
    {
        subList.Add(new SubObject($"Tag.Pos.{i}", i * i));
    }

    return subList;
}