datareader problem

Hi,
i am using web based application with code behind vb.net.and i am using datareader to display the datagrid.My problem is i want edit and update the data for each record.can any body provide me the code for this.i wnat know how to config the property bulider for datagrid.

Thanks
satish

Use a dataset instead. Update the values in the dataset on postback. Use a commandbuilder to extract your queries and submit to the database.