Updating data in web service

I am extracting data from w开发者_JAVA百科eb service(xml file) using NSXmlParser.How can I write to that xml file.I want to actually perform update ,insert and delete operations on that web service

This post is written after reading your comment on the Question.

You need to understand how to upload data from iPhone to server, for that please see this link:

File Upload to HTTP server in iphone programming

mainly you will need to use:

NSURLConnection sendSynchronousRequest

Let me know if you need any further help.

You should create a ResponseXML and modify the data inside.

You will send this xml through a webservice that saves it online (probably another webservice seen that the one you are using seems to only send and not receive data)