LINQ select one field from list of DTO objects to array

Question

I have DTO class that defines order line like this:

public class Line
{
    public string Sku { get; set; }
    public int Qty    { get; set; }
}
         


        

Answer 1

You can use:

var mySKUs = myLines.Select(l => l.Sku).ToList();

The Select method, in this case, performs a mapping from IEnumerable to IEnumerable (the SKU), then ToList() converts it to a List.

Note that this requires using System.Linq; to be at the top of your .cs file.