Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'System.Collections.Generic.List

Question

I have the code below:

List aa = (from char c in source
                   select new { Data = c.ToString() }).ToList();

But

Answer 1

If you have source as a string like "abcd" and want to produce a list like this:

{ "a.a" },
{ "b.b" },
{ "c.c" },
{ "d.d" }

then call:

List list = source.Select(c => String.Concat(c, ".", c)).ToList();