Hello Experts,
I am explaing with a exmple what I am trying to do.
Suppose there is a site abc.com and i am working for site xyz.com
in a aspx page of xyz.com i want to have the results of a aspx page of www.abc.com/somepage.aspx conatins a textbox , a combobox a option button and a submit button i want to fill this form and want to click the submit button then to save the details in a file but i want to perfom this action on xyz.com/somepage.aspx
You could host a page on the xyz site and use an iframe to display that form on the abc site. That's probably the simplest approach. Otherwise this is a perfect scenario to use some sort of web service.
What you are suggesting is XSS. This is usually undesired. Basically, you are looking for ways to bypass the same origin policy. A lot of browsers will block whatever you are doing. Imagine if there was an online poll on abc.com I wanted to stuff. If it was possible for me to silently interact with abc.com while visitors I was using my site, I would be doing what you want to do. I can't do it though, because there are a lot of blocks against that by browsers and web developers.