How do I cast a List effectively?

Question

I have a

List 

but I need a

List  

Is there a way to cast this in c

Answer 1

Since the list is coming from

List list = (from i .... select i).ToList();

Couldn't you just fix the "select i" part to instead return IDataField instead? Something like this:

List list = (from i .... select (IDataField)i).ToList();

If that doesn't work, perhaps the "Cast" extension to IEnumerable will work:

List list2 = list.Cast();