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

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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.

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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)