Hello,

Please check out the link provided.  There are two different options, either through code or through an editor.  The link is documentation which states how to fill the dropdown list by each of the two ways listed above.

http://helpcentral.componentone.com/nethelp/c1flexgrid/listsandcombos.htm

 Please let me know if this helps or if you have any other questions.

Thanks!

-Steve