C# - How to list out variable names and values posted to ASPX page

Question

I am dynamicaly generating a HTML form that is being submitted to a .aspx webpage. How do I determine in the resulting page what variable names were submitted and what the value

Answer 1

Each of Request.Cookies, Request.Form, Request.QueryString and Request.ServerVariables is a NameValueCollection or similar. You can ask each of those for its keys, and proceed from there.

foreach (string key in Request.QueryString.Keys)
{
    string value = Request.QueryString[key];
    // etc
}

Quite which collections you need will depend on the purpose of this - if it's just for diagnostics, I'd be tempted to dump them all out.