>>Dmitry,
>>Go to www.ideablade.com and watch first 2 videos (object relational mapping and populating winform) in fundamentals. Or here is in text for short:
>>
>>If your data project is named Model then you would add:
>>
>>using Model;
>>
>>and any other reference if there are dependencies.
>>Cetin
>
>Cetin,
>Thank you very much. I will look at the video. And I am getting close to eliminating the errors (by adding the "using ". I just have one more that is still giving me a problem.
>
>Again, thank you.

Dmitry, if you are going to videos, I think it is worth having a look at http://www.learnvisualstudio.net .
There's a LIFETIME membership subscription for US$ 69.95 . All you can eat for the rest of your life... :)
Just had a look now and this is going to US$ 129.95 on the second of April.

I've signed a while ago, and the videos are high quality.

Ivan