>Thank you for Eric Moreau reply me first, but because i change oledb method use the Dataset to do... >This will appear two problem ... > 1. i write the rpt report is using oledb to connect , so if i change to dataset method , i need delete the oledb connect , the rpt report all > field will lose , i will rewrite more more report (*.rpt and subreport....) > 2. my program code is also using oledb method to connect and one by one entry the sql statement to select , insert , delete to do. > i no use the dataset , if change the dataset my statement, no to use , and i will handle more and more problem ....... > > >So i think directly to solve this connection problem.... who can help me.... > >