Update Data From DBGrid

Question

Hi All,
I'm trying to write a program to update the DB informations.
For example, an Invoice Maintenance program that involve 2 tables,
Invoice Header and Invoice Details. I load the Invoice Details
records from db table to a DBGrid for user update and call a PHP
program using mx:HTTPService to write the updated data to db.
I would like to know how can I check the dbGrid that only
modified rows will pass to the HTTPService to updating? Or I need
to pass all rows one by one to HTTPService and update the records
one by one? Also is it only possible to pass one row every time
when I call the httpService or I can pass the whole dbGrid and
extract row by row in the php program?
If this problem can be solved I think I can complete the
system without any big problem (except printing ;-) )
Thanks a lot!
Wilson

Answer 1

Using the edit events, I would store a list of the item
indexes that have been changed. Then use that list to return and
build an xml string, and post it to the server via HttpService.
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