Sorting a list alphabetically in a console-app?

I am able to manually enter items and then store them into a list. When I do that and then press "2" to view items (which loads the list), they don’t sort alphabetically. I’ve tried a lot of code but nothing has changed.

I am trying to sort alphabetically by name. The way I input data is: name first, then description, then Id. I’ve tried a CompareTo method with currentItemList.Sort() with no results.

private static List<string> ProductTypeList;
private static Dictionary<string, List<Item>> Products;

public class Item: IComparable<Item>
        {
            public string ProductType;
            public string Name;
            public string Description;
            public int Id;

            public Item(string productType, string name, string description, int id)
            {
                ProductType = productType;
                Name = name;
                Description = description;
                Id = id;

                List<Item> itemList;
                if (Products.ContainsKey(productType))
                {
                    itemList = Products[productType];
                }
                else
                {
                    ProductTypeList.Add(productType);
                    itemList = new List<Item>();
                    Products.Add(productType, itemList);
                }
                itemList.Add(this);
            }
            public int CompareTo(Item b)
            {
                // Alphabetic sort name[A to Z]
                return this.Name.CompareTo(b.Name);
            }
         }

I have more code (that just displays the current default list I’ve already created beforehand, and then my menu with switch/case).
This snippet of code below (in my switch case) is where I believe I should be trying to sort the items, before they display.

case 1: // View Products
Console.Clear();
foreach (var item in currentItemList) <-- error comes from this line
    {
    currentItemList.Sort(); // <--- sort alphabetically, compareTo()
    item.Display();
    }
    break;

I have tried using more variations, but with list.Sort() I get a compare error.

List<Tool> SortedList = currentToolList.OrderBy(o => o.Name).ToList();
Also LINQ with currentToolList.Sort();

I get this error: "Unhandled exception. System.InvalidOperationException: Collection was modified; enumeration operation may not execute." on this line:

>Solution :

It seems that you should first sort the list and then loop over it:

// Sorted representation
var sorted = currentItemList.OrderBy(item => item.Name);

// Time to loop over sorted and Display the items
foreach (var item in sorted)
  item.Display();

Very same idea if you want to sort in place:

// First sort
currentItemList.Sort((left, right) => 
   StringComparer.Ordinal.Compare(left?.Name, right?.Name));

// Then Display:
foreach (var item in currentItemList)
  item.Display();