Using lookupedit on XtraGrid columns

I have a xtraGrid with 6 columns. I want to make one columns to lookupEdit columns. how can i insert m开发者_C百科y datasource(datatable or dataset) on lookupeditcolumns. thanks for helping.

what did you try so far? Usually I use the designer and create the RepositoryItem so it exists in the code. then in my Page Load or Page Init I simply assign the datasource to that RepositoryItem. It's easy :)