source: binary-improvements/7dtd-server-fixes/src/ItemList.cs@ 198

using System;
using System.Collections.Generic;

namespace AllocsFixes
{
        public class ItemList
        {
                private static ItemList instance;

                public static ItemList Instance {
                        get {
                                if (instance == null) {
                                        instance = new ItemList ();
                                }
                                return instance;
                        }
                }

                private ItemList ()
                {
                }

                private SortedDictionary<string, ItemValue> items = new SortedDictionary<string, ItemValue> ();

                public List<string> ItemNames {
                        get { return new List<string> (items.Keys); }
                }

                public Nullable<ItemValue> GetItemValue (string itemName)
                {
                        if (items.ContainsKey (itemName)) {
                                return items [itemName];
                        } else {
                                itemName = itemName.ToLower ();
                                foreach (KeyValuePair<string, ItemValue> kvp in items) {
                                        if (kvp.Key.ToLower ().Equals (itemName)) {
                                                return kvp.Value;
                                        }
                                }
                                return null;
                        }
                }

                public void Init ()
                {
                        NGuiInvGridCreativeMenu cm = new NGuiInvGridCreativeMenu ();
                        foreach (InventoryField invF in cm.GetAllItems()) {
                                ItemBase ib = ItemBase.list [invF.itemValue.type];
                                string name = ib.GetItemName (invF.itemValue);
                                if (name != null && name.Length > 0) {
                                        if (!items.ContainsKey (name))
                                                items.Add (name, invF.itemValue);
                                        else
                                                Log.Out ("Item \"" + name + "\" already in list!");
                                }
                        }
                        foreach (InventoryField invF in cm.GetAllBlocks()) {
                                ItemBase ib = ItemBase.list [invF.itemValue.type];
                                string name = ib.GetItemName (invF.itemValue);
                                if (name != null && name.Length > 0) {
                                        if (!items.ContainsKey (name))
                                                items.Add (name, invF.itemValue);
                                        else
                                                Log.Out ("Item \"" + name + "\" already in list!");
                                }
                        }
                }
        }
}