Hi Gaston,

>I need to see both (prim key | description) when i dropdown, and when i select i must see only the description.

Yep, but when you drop down it will be shown as Description then PK. Just set the BoundTo=.T., BoundColumn=2,columncount=2 then column 1 should be your description expression and column 2 will be your PK.

>Is correct this ?

Normally the user should never see the PK nor realize it even exists, but I'm don't know your specific situation so I can't tell you if its right or wrong.