double getValue(int fieldno);
The function getValue() returns content of any numeric field as a double value.
Do not forget to call readRecord().
If dbf file contains non-ASCII symbols, you have to use a similar function and provide a code page:
string getString(int fieldno, EncodingInfo e);
{
// your code
dbf.readRecord( row );
Console.WriteLine( dbf.getValue( 0 ).ToString() );
// your code
}