It looks like I can use {%QuerSytring["ParameterName"]%} to get values from the query string, but I wasn't able to get values from the form POST collection.

In C# it would just be:

Request.Form["ParameterName"]

or without direct access to the request context:

HttpContext.Current.Request.Form["ParameterName"]

I made a custom macro for this, but would rather use native functionality if available.

Any ideas?

Thanks,
John