Return list of specific property of object using linq

Question

Given a class like this:

public class Stock {     public Stock() {}     public Guid StockID { get; set; }     public string Description { get; set; } } 

Lets say I now have a List<Stock>. If I would like to retrieve a list of all the StockIDs and populate it into a IEnumerable or IList. Obviously I can do this.

List<Stock> stockItems = new List<Stock>(); List<Guid> ids = new List<Guid>();  foreach (Stock itm in stockItems)  {     ids.Add(itm.StockID); } 

But is there some way I could use Linq to achieve the same result? I thought Distinct() might do it but couldn't work out how to achieve the desired result.

Answer 1

var list = stockItems.Select(item => item.StockID).ToList(); 

Answer 2

You could also do it like this:

ids = stockItems.ConvertAll<Guid>(o => o.StockID);