Doing a Cast Within a LINQ Query

Question

Is it possible to do a cast within a LINQ query (for the compiler\'s sake)?

The following code isn\'t terrible, but it would be nice to make it into one query:

Answer 1

And here's the query method form.

List parentLineList =
  content.ChildControls.OfType()
    .SelectMany(t => t.ChildControls.OfType())
    .SelectMany(p => p.ChildControls.OfType())
    .ToList();