.........................
//Запрос к DBF файлу
string query = "select * from ["+file+"] where NPType = 3";
				
OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+dir+";Extended Properties=dBASE IV;User ID=Admin;Password= ");            
OleDbDataAdapter da = new OleDbDataAdapter(query,con);
DataSet ds  = new DataSet();
da.Fill(ds,"File");

RptReestr Head = new RptReestr();
Head.SetDataSource(ds.Tables["File"]);
this.crystalReportViewer1.ReportSource = Head;