如何使用C#连接dbf数据库

samples:
string connStr="PWD=;SourceType=DBF;UID=;Collate=Machine;Deleted=Yes;BackgroundFetch=Yes;Exclusive=No;Driver=Microsoft Visual FoxPro Driver;Null=Yes;SourceDB=h://";

   OdbcConnection conn=new OdbcConnection(connStr);
   conn.Open();

   string cmd_string="select item_no,decp,pkclass,freq,lic_type,prod_fct,remark from ITEMHDR order by item_no";
...
   OdbcDataAdapter da=new OdbcDataAdapter(cmd_string,conn);
   da.Fill(ds,"ITEMHDR");
...