What's the equivalent in asp.net for the old "form method=post" using the 
submit.  I want to redirect to another page with parameters, but I don't 
want the parameters to be displayed in the url.  So I want to pass 
ClientName and ClientCompany to
www.mySite.com\p.asp?ClientName=John&ClientCompany="JDCo"

but I only want to display in the address bar www.mySite.com/p.asp

There are several ways to do this. One way is, put a ASP.NET Button
control on your page and then in the click event you could create
sessions and assign the parameters to the sessions. Then you would
response.redirect to the new page and check for the sessions.

Here is example code for the button click event (in C#):

--------
Session["MyParam1"] = "Hello";
Session["MyParam2"] = "World";

Response.Redirect("p.asp");
----------


Then to read the parameters on the receiving page you would do the
following to write them out on the screen:

----------------
string sParam1 = Session["MyParam1"].ToString();
string sParam2 = Session["MyParam2"].ToString();

Response.Write(sParam1 + " " + sParam2);
----------------

Result on Screen: Hello World