That is how I do it mostly. My models are usually xml, and I put a dtamodified="true" attribute on any "leaf" node that changes, and on each parent up to the root.
On save, I use e4x to list the nodes with that attribute, and build an update structure to send to the server. Alternatives might be storing the indexes of changed items, or storing a reference to the changed item itself in an array. Tracy Spratt, Lariat Services, development services available _____ From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of markgoldin_2000 Sent: Wednesday, April 29, 2009 6:24 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Which rows in a datagrid contain modified items (and which don't) ? How about to have a flag field in your data? every time a row is modified set the flag to true for that row. Then filter data on that flag and send back modified rows only. --- In flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com, "Libby" <libbychan...@...> wrote: > > Hi, People > > I have a datagrid where user can modify a few rows out of 200 - 500 then click save. I only want to hit the database with the changed rows. Is there a technique whereby I can identify the "dirty" rows, pluck them out, and ship only them off to the database, without going thru and comparing column by column, row by row? > > Thanks, > Libby >
