i have a problem , I tried to read file .dbf but I can't get the connection to the database, I use vc++ , I think i don't know how to handle the DSN definitions, please help me, I need slow explaination.
For an overview of Data Access from VC++, I think that the MSDN page is pretty good. In order to get a higher level introduction, you probably want to pick up one of the basic books or courses. There are some good references for core MFC development at MSDN too.
Assuming that you need to dynamically build a connection string, I'd suggest that you check the dBase. That page is specifically for dBase connections, with links to related (more general) pages.
If you can use a static connection, build a system DSN