C# Linq - Cannot implicitly convert IEnumerable to List

Question

I have a List defined like this :

public List AttachmentURLS;

I am adding items to the list like this:

instructio         


        

Answer 1

Move the .ToList() to the end like this

instruction.AttachmentURLS = curItem
    .Attributes["ows_Attachments"]
    .Value
    .Split(';')
    .Where(Attachment => !String.IsNullOrEmpty(Attachment))
    .ToList();

The Where extension method returns IEnumerable and Where will work on arrays, so the ToList isn't needed after the Split.