Question

I want to develop an app which can send and receive data from a website. to be precise i want to make a windows form app of a website now.

Answer 1

Do you have control over the web site?

• Yes: Create some kind of Web Service API with which applications can integrate. Be it SOAP or WCF or anything, the idea is to provide the functionality without all that messy UI that applications don’t need. Then your application would just access the web service API.
• No: You can perhaps take a “screen scraping” approach, though it’s a good deal messier. You’d create HttpWebRequest objects which set GET/POST requests to the page(s) in question and read the response. This can get particularly ugly if the page has a lot of dynamic content because you’re just going to get the page source, not the browser-rendered output. Other requests may need to be sent for additional content.