How to populate a report made with crystal reports

Hi experts.

i 'm a newbie in crystal reports and i need to create a report that lists a field that comes from an arraylist. or a datatable created on runtime.

all the examples i have seen use datasets and dataadapters wich connect to a database.

what i need is to list some strings in the report with data that i have in an arraylist.

my questions are.
what kind of field should i use in the report designer to list the strings?
can i bind that field to a datatable or datacolumn?, ¿how?
can i build that list at runtime?, ¿how?

thanks in advance