Hi Arnaldo,

My understanding is that IntPtr is managed code.

Here are some articles that explain databinding that you might find interesting:

http://www.codeproject.com/vb/net/databindingconcepts.asp?target=databinding

http://www.bluevisionsoftware.com/WebSite/Books/CustomControlsAndDesigners/Samples/Chapter6.pdf


>Thanks again for your help!, you're great!
>
>One question, using IntPtr isn't making unmanaged code?, I think I've read that somewhere.
>
>Right now i'm trying to understand the bindingcontext object to manage the current row and to know the number of rows on a datagrid.
>
>Thanks for everything!,
>
>Chao!