Pass Data

In ASP, when we pass data between pages, we usually pass by query string. If
we pass data by query string, that means we need to use submit button, not
by regular button, and the form will pass to the server since it's GET or
POST request. But if just form-to-form communication, why we need to send
the form to the server?

<form action="process.asp" method="get">
//form controls

<input type="submit">
</form>

For example, http://www.myserver.com?id=100&name=joe

Form.QueryString("id")
Form.QueryString("name")