Hello, sorry to post it here, I don't think it's specific to MacRuby but I can't get any answer in Apple Cocoa forum. I'm doing a commercial app in MacRuby but my app need a datepicker inside a table view. Force user to type data inside a formatter is pretty bad, so I thought it will be much better if I place a NSDatepicker in my cell. My tableview use bind to bring data from a core data entity and everything works great in all columns (textfield and checkbox). But when I drop a NSDatepickerCell inside my table column it doesn't work correctly. The datepicker is always blank, if I already have a column in database with date defined when I open it in Tableview the datepicker display the data but don't let me change the value. Someone have sugestion on what I should do? Thanks a lot. Daniel Lopes