using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public class ThingWithStackable

    {

        public int stackable { get; set; }

        public string shortname { get; set; }

        public ThingWithStackable( string shortname )

        {

            this.shortname = shortname; 

        }

    }

    public static List<ThingWithStackable> ItemManagerItemList = new List<ThingWithStackable>()

    {

        new ThingWithStackable("item1"),

        new ThingWithStackable("item2"),

        new ThingWithStackable("item3")

    };

    public class StackThing

    {

        List<string> item_ores = new List<string>(new string[] { "item1", "item2", "item3" });

        private void setStack(List<string> items, int limit) {

            foreach (string itemName in items) { 

                ItemManagerItemList.First(x => x.shortname == itemName).stackable = limit;

            }

        }

        public void Init() { 

            setStack(item_ores, 50000);

        }

    }

    public static void Main()

    {

        new StackThing().Init();

        foreach (var item in ItemManagerItemList)

        {

            Console.WriteLine(item.shortname + " " + item.stackable);   

        }

    }

}